My "WeddingType at its biggest" idea was Moo.com for wedding invitations — the place to go if you're looking for professional invitations on a budget. Printing and mailing has an interesting problem — would many couples mail the invites without first seeing it? Would they prefer to have all the invitations on hand to mail themselves, rather than the service mail for them?

Just thought of this: What if they went through the service, had a "sample" of their finished invite sent to them, and once they approve, then the service could send out the individual invitations. Printing just one custom invitation for each customer might be problematic, though. But something to think about, indeed.