Things I could be doing instead of watching House

Anyone who knows me at all knows that one of my vices (?) is watching television. You don't arrive at the decision to be a screenwriter hating TV. Lately, with my crappy employment and living situations I spend most of my day watching reruns on USA. This network has the pleasantly comforting habit of showing marthons of some sort everyday, i.e. Monday NCIS all day, Tuesday SVU all day, etc and my favorite days are the House marathon days. Of course, I wouldn't be watching these shows if I didn't enjoy them but at some point at least once a day I ask myself how productive I could be if I didn't watch episodes that I'd already seen dozens of times. It's not like I don't have plenty of new things to watch/read/write. The RTD rejuvination of the Whoniverse alone provides many, many hours of episodes, behind-the-scene features and interviews. And what about exercising? Getting out in the sunshine from time to time (Granted, I could exercise while watching TV but I don't)? I think I shall start a little experiment today and (try to) turn off the TV and explore some other options (but no way am I giving up my daily Gilmore Girls fix. Some things are just sacread). Who knows? Maybe it is the one impediment preventing me from taking over the world! Narf!