Well, I have a TV, but I've hardly turned it on since I got PC/Internet at home 3.5 years ago. (Kind of like my car, which I've driven 6 miles so far this year). Perhaps needless to say, I don't have cable either. I do have a kick-ass stereo, which now I use mainly for playing PC-based movies and music.
No cell phone. My home phone service is pretty vanilla. No caller ID, call waiting, et cet. Old school answering machine.
I gave up meat except fish and occasional poultry many years ago.
I guess that's about all my "asceticism." Well, there is one other thing: one year, I gave up guilt for Lent and I just never got around to picking it back up again....