It’s inevitable; At the end of every week, I feel like such a slacker. Like I didn’t do a single thing all week.
And then, every Monday, I write a list of the things I accomplished last week. Working at Automattic makes this super easy. I just look through any posts I made on WordPress.com and my code commits in a couple of Trac installs. It takes about 20 minutes, and I always feel better about the previous week, and anxious for the week to come.