I have this box of cards, which contains thirty-two various small cards, but  but there are only nine envelopes.

    The cards from various times include blank, birthday, get well, and thank you cards.  So I am ordering one hundred small invitation envelopes (4-3/8″ by 5-3/4″) for eight dollars.  I will have plenty of these for this and other purposes.  Last year I actually hand made some envelopes from a pattern I found online.  It is definitely worth it to order them!