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.
Finish: Your paper finish will affect how you're able to print and how much ink your invitation will take. Glossy papers take a lot more ink and longer to dry. Linen papers and papers with more texture have a much higher tendency to bleed, and so they won't work with some at_home printers where you can't change your ink settings. If you're not interested in researching finishes because you're not a weird nerd (like myself) who likes to feel on paper, a matte card stock is an easy, relatively foolproof option that will more than likely work for the printer you're using.