This would be a great day to take the kiddos out for a brisk walk around the park or mall. A bit of exercise will do wonders for your stress levels. Bonus: You can get a jump on all that holiday shopping that's left while you're at it.
You're making progress on some emotional business that has been troubling you lately. See if you can get your people to back off and give you the space you need to clear this all away.
National Hard Candy Day is a great reminder that small gestures can start friendships -- seriously. Offer someone a peppermint drop if he looks like he's having a little tummy trouble. Proffering citrus candy can help break the ice at a professional gathering, too.
If you run, try tai chi instead. If you swim, give a pick-up game of basketball a whirl and see how you like it. Switching up your fitness routine stops you from being bored, plus, it exercises different muscles.