I'm trying to cut costs, but don't want to be rude to anyone. I heard that you should definitely allow your wedding party to have guests to the wedding ( a couple of them are bringing same-sex friends as guests to keep them company for the wedding, so not a "date" in anyway for these straight friends of mine). Should we also invite their guest to the rehearsal dinner? It's a destination wedding for most, so they would be in town. The rehearsal dinner is pricey, since we thought the guest list would be small. Would it be unfair for others to be bringing their spouses but not invite the "friend-guests" of the wedding party?