That's why I don't often use the environmental arguments: I can't say I'm genuinely choosing not to drive/fly - I can't afford it anyway!
Me, too, Penguins, exactly! Still, I sometimes take comfort in the fact that I'm now a very low-level polluter. I don't even fill a bin bag a week these days. You must glow with environmental purity 
My farmer friend (not factory farming) tells me cows get upset when they're going to be slaughtered, while sheep placidly follow the leader to their doom. This simple discovery would lead me to eat a lot more lamb than beef, if only it weren't so expensive. I limit the amount of pork I buy because I don't like intelligent animals being farmed in pens; it bugs me since pork's good value, food-wise. Hens are grumpy and stupid, so I don't care much about them ...
... see, I said I'm horrible 