What do you do while you wait for a game?

I have a problem. Whenever I'm on the waitlist for my poker game, I always resort to playing blackjack. This isn't because I'm a compulsive gambler, it's because I'm just bored and there is nothing else to do while I wait. At the place where I play there is usually only 1 or 2 tables going so I don't have the option of just jumping in another game to wait. Does anyone have any ideas? Blackjack is getting expensive.