I've been doing the piano bar thing since around 2002, and in that time I've found that for me, 2 songs stand out head and shoulders above the others when it comes to $$$ hitting the tip jar: Piano Man (no brainer there, I always joke that it's the piano bar national anthem and, since the place I play is at a casino, I say that it's a state gaming regulation that I play it at least once a night). the other one is Linus and Lucy, which I get more requests for now that it's holiday time, but really it's a year round thing as well....anyone else?