Organize your sock drawer. When you find a mateless sock, or one with a hole, cut it into a rag you can use later to clean your floor. If you’re feeling really motivated, use wire ties or rubber bands to keep them in pairs.
Play Hemingway and drink whiskey while you catch up on the novel you’re trying to write this month.
Beef up your holiday travel plans. Find something cool to do near your destination that will allow you to get away from your family for a couple hours. Your future self will thank you, no matter how much you love your relatives.
Achieve Inbox Zero, and set up some filters so that you stop getting notifications for every damned Facebook invite someone sends you.
Write a letter. On paper. With a stamp. Your recipient will love getting something that’s not asking them for money or trying to get them to sign up for something that costs money.
Back up your websites/databases/hard drives. It’s an easy hedge against awful things happening.
BONUS: While you’re doing any of these, watch three episodes of Arrested Development on Netflix. Even if you’ve seen them all multiple times. Take a sip of your white wine spritzer every time someone says, “Her?”