There's numerous situations where you might want to tip. Usually a restaurant or when I get a haircut. How much? Maybe five or six bucks on a twenty-five dollar haircut. Usually 20% at a restaurant. But it depends. If it's lousy service or bad food, I'll tip less. Maybe 10% if it's really bad.
I know. It's not the server's fault if the food is bad.
But the other day, I heard of something totally preposterous. There's a movement by a few really cheap people that won't tip. Anything. They believe that by not tipping this will advance change in the industry forcing restaurants to pay their servers more. What a stup.id idea.