do you tip at resturants?

Tips should be earned and not considered a given thing. Lets say we're dealing with a $70 meal. If the service is excellent i will most likely leave $20 maybe $30. It won't be the waitresses fault the food maybe bad. If the waitress acts like they could care less that's the attitude my tip will reflect. Sometimes when some of my help does a good job during the week and goes beyond the call of duty, in front of the other guys, i'll give him an extra $20 bill to maybe inspire more effort from the other crew members. I've given out as much as $100 to crew member. I'm not tight but don't like to be screwed. I will reward a job well done.