So I heard the whoever is helping pay for anything with the wedding their names should be on the invitations... my parents are helping pay for some of the wedding... FIL's are paying for rehersal dinner and my fiance and I are paying for the rest. So I'm wondering who's names should go on the invites... now it gets tricky because my parents don't want my sister to know they're helping (because she'll throw a fit) but if everyones names are supposed to be on the invitations I don't want FIL's names on them and not my parents... so what should I do?