I'm having a hard time making a list for my maids as to who I want at a Bachelorette party. I have 8 definites (including my 3 maids) and about 4 more I'd kind of like there. Is 12 too many? I haven't been to many, but I feel like that's more than usual. Is there an obligation to return the favor of going to someone elses bachelorette party?