To quote from Parks and Rec above and "treat yo'self" means you can get yourself a little something any day of the year. Or use the 'one for you, one for me!' system with reusable bags that I personally keep in my purse at all times.
We choose something charged with caffeine to get you through this long day of shopping. Try Irish or English Breakfast Tea!
A few days after Black Friday comes Giving Tuesday. Don't have much to give? As little as one canned good goes a long way at a food bank. Or, consider donating your time to charity or to a local small business who could use your expertise, your time to answer the phones or your social media shares.