Ok quick and simple the title says it all. Get Better for December. Pick 1 thing and see if you can improve on it for the month. You have 31 days. I don't care what you pick. It can be pushups, pullups, run a faster mile, eat better, hell you might pick doing a better job at work. Only you can pick and only you will know if you got better.
And please spare me the "holidays are coming" crap. Stop! No one said you have to eat everything in sight. Get Better at 1 thing. The challenge starts tomorrow.