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As temperatures tumble and daylight dwindles, you might be tempted to grab the remote and hunker down on the couch 'til spring. Trouble is, a few months of indoor inactivity will translate into less energy, mushier muscles and a wider waistline.

Staying in shape when it's cold outside may take a little more effort and a dash more creativity than other times of the year, but it's worth it. Stick with your winter workouts and—trust us—you'll be a lot happier when the sweaters come off and the bathing suits go on. Below we give you six great strategies to keep yourself moving while the bears and squirrels are snoozing.

Window-shop for fitness. Like to walk, but hate the cold? Hate the treadmill even more? Hundreds of shopping centers across the country cater to walking groups who do brisk indoor strolls before doors officially open for business. You burn four to eight calories per minute whether you walk indoors or out. Of course there's an added bonus—you get a head start on pursuing the merchandise. Check with your local mall management for details on their walking clubs and services.

Go from spud to stud. Instead of vegging out while watching Who Wants to Be a Millionaire, walk on your treadmill, do some step aerobics, jump rope or jog in place. Any movement, even if it's simply doing push-ups during the commercials, is worth something. You can also turn your TV into an exercise machine by popping in a workout video instead of cartoons. (No you can't just watch the video. You actually have to do it.)

Workout with class. Check out some group classes even if you don't do them when the weather is warmer. If the basics like spinning, low impact and step don't appeal to you, consider giving more offbeat offerings like candlelight stretch, circus aerobics and yogaerobics a try. You don't have to join an expensive gym to find a group class. Many adult education programs at community centers, universities and hospitals offer classes at low or no cost.

Give yourself a lift. When it's cold outside, you probably move around less than at other times of the year. That's one of the reasons you tend to gain weight during the winter, and that's also why it's even more important to keep up your weight training routine. Doing a weight workout that involves the major muscle groups of your chest, back, legs, abs and arms not only burns about eight calories a minute, it also builds and maintains metabolism boosting muscle. No need to get fancy either; all you need is your body weight and a few dumbbells for an at-home weight workout.

Summercise your workouts. Take a break from the cold and dream of warmer days. YMCA and YWCAs and health clubs offer swim lessons, aquacise classes, aqua running, aqua stepping and lap swimming. Water sports place less strain on your joints and give you the opportunity to tone up for summer. Some sample calorie counts: A basic crawl stroke burns between eight to 12 calories per minute and a typical 45-minute aqua running session burns about 400 calories.

If you can't beat it, enjoy it. Sure you can stay cooped up until the ice thaws, but you can also embrace the cold weather by taking up a winter sport. If sliding down a mountain with your feet strapped to two planks isn't your idea of a good time, there are other cold weather activities to consider. How about ice-skating, sledding, winter hiking and cross-country skiing? They all burn between six and 10 calories per minute.

We heard you were ready for a gut-busting 2006. This would be the year you'd stick to your muscle-building, fat-burning covenant: the New Year's resolution. No missed days. No empty calories. No wimp-outs. No excuses.

No, really.

We still believe in you. Of the 16 percent of guys who resolve to work out more in the new year, however, 49 percent fail to adhere to their resolutions. We've heard all the excuses. (We've used a few ourselves.)

So we made a list of them—the lame and the understandable. Then we called around to psychologists, dietitians, trainers and men who manage to work out no matter how busy their lives are.

First, the legitimate excuses. We found four: You're sore, you're sick, you're exhausted, you're hurt. That's it.

Soreness means your body needs a break: "Recovery is as important as working out," says Carter Hays, C.S.C.S., a Houston-based personal trainer. Overtraining keeps as many men from reaching their goals as undertraining does, says Hays. An illness means you should knock off and let your body fight the bug. If you're so tired you're drowsy, you could hurt yourself. And if you're injured—especially if you're experiencing joint pain—let your body heal.

As for the rest of the excuses, listen up:

"Looks like rain." Men's Health cover model Gregg Avedon lives in Florida. Do the names Charley, Frances, Ivan and Jeanne mean anything to you? Avedon spent much of 2004 lifting storm shutters and storing away patio furniture, then taking cover. He still looks great. Avedon says your home gym—those dumbbells over there, and your chinup bar—makes staying in a viable option. You can also spice up your indoor cardio by jumping rope or running up and down stairs. Or tie both ends of a resistance band to a doorway, place a towel across your chest, face away from the door with the band (cushioned by the towel) across your chest, and run in place.

"I have no time." Combine things you do anyway—work, breathe—with athletics. Set up business meetings during which you walk or jog; play tennis with your date; take a spin class to find dates; or take your family hiking, suggests Charles Stuart Platkin, M.P.H., author of The Automatic Diet.

"I pack my gym bag and then The O.C. comes on." Get TiVo. Then tell yourself you're going to do just half of your regular routine. "It won't seem so insurmountable, and you'll end up doing the whole workout," says Edward Abramson, Ph.D., a clinical psychologist in Lafayette, California.

"I need my sleep." Pat Croce manages to stick with his workouts, and this father of two has been busy hosting his syndicated TV show, Pat Croce: Moving In, and opening a pirate museum in Key West, Florida. "Like me, you have to schedule fitness," he says. On the first of each month, Croce reviews his schedule with his secretary and then his wife, and breaks it down into weeks. Every Sunday, he goes over the coming week, making sure there are gyms at hotels where he'll be staying.

"I don't want to spend $50 a month on a gym membership." Don't. Now's the time to negotiate fees, trial months, or group discounts. Think you don't have the cash? Save $900 a year by switching from cafe mocha to metabolism-boosting green tea when you stop at Starbucks every morning.

"My gym sucks." So move. Changing gyms is an opportunity for you to upgrade your workout. See the next tip.

"I'm bored with my workout." "Throw it in reverse," says Gunnar Peterson, C.S.C.S., author of G-Force. If you always do lat pulldowns with an overhand grip, switch to underhand. Do a reverse-grip bench press, reverse-grip curls, reverse-grip triceps pushdowns. Do front squats, rear lunges, and dumbbell lateral raises with your palms up. Count backward, too. "It's like a blastoff," says Peterson: "5, 4, 3, 2, 1, done."

"I never see results." Maybe you're not looking in the right places. Measure your waist, your heart rate and your weight. Write them down. Then measure again after a week or two, says Croce. Celebrate even the smallest sign of progress. Muscles appear as fat melts.

"Four weeks, and no change in waistline, heart rate, or weight!" Whether you see results or not, you're strengthening your joints and connective tissues, which means you're laying down a foundation for future muscle growth, says Peterson. Your diet, stress, sleep patterns and other factors besides your workout may be holding you back—so don't give up.

"I have no energy." Eat. You need the fuel. "An active guy needs up to 1,000 calories more than an inactive guy," says Gay Riley, R.D.

"I'm just making sure my body is getting adequate time to recover." After 72 hours of rest, you're just sliding backward. "But are you actually giving yourself a chance to recover?" asks Peterson. It's not all about time. Mix L-glutamine into your postworkout shake and eat a diet full of omega-3 fatty acids; they can assist with cellular reconstruction and the removal of metabolic wastes to help you recover faster, Peterson says.

"I always get hurt." This happens when you ratchet up your workout. Focus on losing one pound at a time or boosting your weights in five-pound increments, says C.J. Murphy, M.F.S., owner of Total Performance Sports in Everett, Massachusetts. If you're used to doing 20 minutes on the treadmill, don't try a two-hour road run. If you bench-press 50-pound dumbbells, don't go for 90. Instead, make small increases in the difficulty of your workout, focus on form, and work with a spotter so you still have a safety net, Murphy says.

"My elbows/shins/pinkie toes hurt." "Pain is a sure sign something is awry with your exercise choices," says Murphy. This year, don't isolate body parts so much—your muscles should function as a team. If your shoulder hurts for a week after you do lateral raises, stop doing them. Find a variation that doesn't cause pain, he says.

"I don't want to look stupid trying to use those space-age machines." Approach new machines with enthusiasm. "That's a good way to broaden your fitness spectrum," says Peterson. Read the placard, ask a trainer for assistance, and give it a shot. Nobody's looking. "They're so into themselves that they're not even thinking about you," Peterson says.

"I'm bored again." Organize your workout differently for one to two weeks, says Peterson. Let's say you're usually a push-pull guy—you do chinups and leg curls one workout, bench presses and squats another. Try working antagonistic, or opposing, muscle groups, such as your back and chest. You can also change to an upper/lower split routine in which you alternate upper-body workouts with lower-body ones. Or try a total-body workout a few times a week.

"My buddy can't make it tonight." It's easy to blame others. "If you're serious about training, think of it like a job," says Murphy. "If your training partner was an employee who continually was late and had poor performance, what would you do? You'd fire him!"

"I hate working out alone." Go to the gym at the same time and on the same days. Say hi to people. You'll find others who are on your schedule, says Abramson.

"I should really stay with my wife tonight and help with the baby. Plus, The O.C. is on." Or you could help all three of you. More and more gyms have child-care centers so you and your wife can get away and spend time together—something that new parents need, says Abramson. Or go over the calendar with your wife: For every day she's out, you can schedule a workout.

"Everyone's going out for drinks." Join them once a week "and you won't appear standoffish," Abramson says. But eat first. By having your drinks with a meal, you won't drink, snack and eat dinner later.

"But The O.C. is on!" "Create a commitment you can't get out of," says Platkin. Make an appointment with a trainer who will charge you whether you show or not.

"I commute for an hour. I'm not getting back in my car." Go straight from work twice a week, then work out at home the other nights.