AT_HOME PRINTING: By far the most accessible, this is easiest option for tackling the project in smaller chunks on weeknights rather than spending hours in a studio or waiting at a print shop. However, you should test paper before buying a ton of it, printers can be especially finicky, and your can't exactly change the ink your printer uses. If your printer isn't higher end, you may have very limited paper options. Here's a little more on at_home printing.
Tips For PUTTING IT ALL TOGETHER _ Paper cutting: The Internet loves to tell you that if you are doing your own DIY wedding invitations, you need to invest in a professional paper cutter, or at least a rotary cutter, along with a tape gun, and the list goes on. You can skip this by ordering paper that's cut to size—always double check to make sure you can print said format of course—and skipping any taped on embellishments. I promise, a fancy invitation need not have three layers of cardstock and the ability to stand on its own.