Man, I have ALWAYS thought they were tacky. But damn... they can really pay off. We played a pool party for an apartment complex community on Sunday. We were paid our usual four-hour rate for to play three hours, got fed, and *they* put out a tip jar for us (we didn't know they were going to do that). We ended up going home with an extra 50% above what we originally charged. And a couple weeks ago, we made an extra 10% in tips. No jar - just people coming up to the stage and giving us money.
Now that I've been dazzled by dollar signs, I'm wondering what we'd get if we actually had a tip jar. Would it be considered unprofessional to put one out at a bar gig if we're already getting paid? What's the protocol for tip jars?