Just bought some invitations today because I had a 25% coupon at Michael's for all wedding invites! Wooo! (I got these: http://www.gartnerstudios.com/content/brown-ivory-flourish-invite-kit
Anyway, I was curious how many EXTRA invites you're buying for any "just in case" moments? I counted my guest list and we'll need 95 invites, counting a few instances where older cousins get their own invites from parents and such so there may be a few extras in that count already.
I bought 100 so I'm trying to decide if I should get more. They come in boxes of 50 though so I may be stuck with a lot of extras if I just need a few over 100.