I'm right with you. I've been known to tip $5 on a $6 meal if the service was good. I figure that a $5 minimum on table delivered food is appropriate. Why should a waitress suffer financially because I eat cheap. There are some people that tend to be demanding, demeaning and least the least amount of tip that can rationalize no matter how good the service is. I can only guess which party they vote for.
I have been known to leave a $5 tip on a cup of coffee served by an attractive wench.