Every night after I'm done working, reading, etc. I play tetris and listen to podcasts.
Lately I've revived a game I used to play on my NES -- tetris-only tetris, or "greedy" tetris. The idea is to only get tetrises, and see how many you can get in a row with no single/double/triple lines in between.
So far my best is 19. I average about 8 or 9; sometimes I get zero.
I've been playing at
http://www.1980-games.com/us/old-games/nintendo/t/Tetris/game.php (in Big Game mode).
I've been listening to
White Coat, Black Art and
EconTalk. Both are great.