You have your limits, and today you will have to remind someone of that fact. Be on the lookout for someone who is trying to take advantage of you. They want more of your time or money than they truly deserve -- don't feel like a grumpy miser if you want to tell them to bug off. You've been far too generous with them for far too long. Today it is time to cut the strings and let them float off on their own. They will be just fine -- you'll be doing them a favor, really.