Comedy shows are a lot of fun. Usually if you go during the week or on Sunday, the cover charge is less, though I think they always have the 2 drink minimum.
You are in Arlington, right?
http://www.hyenascomedynightclub.com/
I worked a few nights here. The two comedians I know coming up are Ben Creed in May and J.R. Brow in June (JR and I worked together a lot - we had the same home club).
You should go - get a sitter and go forget about everything for a while. Your stomach will hurt from laughing!
Fun fact: Kelly Clarkson worked as a cocktail waitress at the comedy club in Ft. Worth before she hit it big!