Flat unfolded cards and traditional card blanks are great if you’re on a budget or don’t have huge amounts of information to include. Wallets are great for including lots of extra information inserts, RSVP cards as well as the main invitations themselves. There are also in_between options that give you the freedom of a wallet on the budget of a traditional card.
However, if a paper cutter sounds like a useful thing that has a place in your office, buy it! You don't need to shell out 贄 for a good one. This ษ trimmer has been a great little workhorse for me for about four years now, through invitations, photo albums, and many, many other late night print jobs.