I want to go to a salon after my bridesmaids' luncheon (2 days before the wedding) and get our nails done. I am taking them out to lunch, and paying for that, of course, and I'll give them their gifts at that time as well. Do I also pay for their nails? They don't have to come with to the salon after the luncheon, it's definitely optional, but I'm sure they'll all want to go. What should I do?