So, I put in a tip jar. So what? Does that make me a greedy, selfish, presumptuous, pompous, fool? Hardly! It makes me a good little capitalist! In fact, I dare say that if you don't have a tip jar on your blog you're a filthy dirty communist, or maybe even a hippie.
Really though, if anyone ever actually drops me a dime (minimum contribution $1 -- Ed.) I'll probably feel so warm and fuzzy inside that my physical form will convert directly into 6.5x10^18 joules of energy.