I think I am addicted to this: www.bubbleshooter.net
I've done the equivalent of 2 hours work today (it should have been 8), my eyes ache and I can't even differentiate between the different colours of the bubbles any more. I keep shooting blues at greens. Fuck.
So in the week I have resigned myself to the fact that I have lost my brother to Counterstrike, I ask you: What games (past and present) have you spent ridiculous amounts of time playing?