Unless my server does something ridiculous, I tip 20%. A lot of people tell me the standard is 15% but some of my friends who were servers through college complain endlessly about people who don't tip at least 20%.
So LO's christening is this weekend and we have a private room at a restaurant. A 15% gratuity is included in the bill. I feel weird giving her a 20$ bill, but that will be the extra 5% to make it a 20% tip (about). My sister says I shouldn't leave anything because the gratuity is included. I kind of thought they would get a higher percentage for large parties, though.
What do you normally tip for regular eating out and large parties?