1. Pack some ultra compact nylon bags (that fold up into tiny packets) in your purse so that you are always prepared for unexpected errands.
2. Stow fabric (hemp, jute, canvas, cotton, recycled plastic textile, etc) bags in your trunk for big shopping trips-—just get in the habit of returning them to the trunk after unpacking groceries.
3. Reusing plastic and paper bags helps; keep a supply of them in your trunk for groceries and use them until they are too worn, then recycle. (Many stores now offer a rebate when you BYOB.)
4. Look French and use baskets when you go to the farmers’ market. Salad doesn’t get as squashed when you put it in a round-bottomed basket.
5. If you get stuck with groceries but without your totes, pick plastic: when statistics are compared, it is the lesser of the two evils. Try to reuse it again and when it comes time to recycle it, tie it in a knot to keep it from blowing away from the trash and landfill and into the trees and ocean.
6. If you’re crafty, make a super-cute DIY knitted shopping bag (like the one pictured above).
The best advice is to simply get into the mind-set: once it becomes habit the inconvenience disappears and it seems there was never another way. The whales and turtles will thank you.