What do you spend your time on?

Recently I've started wondering how much of my time is spent playing video games. Especially after reading this blog post on Japanmanship about one person's obsession with Tetris. Maybe I should start keeping track of my video game time, and see what that aspect of my life amounts to. It's nearly the end of October, so I'll set a date of starting on November 1st. Hopefully I'll remember, but I might not. I would estimate I spend on average about 7-10 hours a week playing video games, but my perception could be totally skewed. In just over 1 week, I'll start the count.