BiscottiGelato

Honestly, we already pay for the service regardless if it's a haircut or a restaurant. The server or whoever does get their cut of pay already, it's called their wages...... If you don't think you already get paid enough, talk to you boss. If your boss think he didn't receive enough to pay you more, tell your boss to revise the menu/hair cut charge.....

I tip 10% when I think service is average for the establishment. If service is below the level of the establishment, be prepared that I'll ceiling the total to the nearest dollar. 15% is the max I'll pay for high end restaurants. 20% if it's a lower level place and the service is exceptional.