Printing Addresses on Save the Date Postcards

A printer.

Did you design them on your own computer or on a website? Minted does free recipient addressing. Otherwise you can use your home printer. I wish I could give more advice on how that works, but I know people do it all the time.

You can print at home or take them to Staples or Office Depot to have it done professionally but shouldn't be too expensive

I'd get clear labels and print them myself to save money.

I printed directly on the envelopes. Wedding wire lets you export your guest list with addresses into an excel spreadsheet. Microsoft word has an envelope template that walks you through importing your spreadsheet into the new document. I saved the document so its all ready to go for invites. Google was my best friend! I've done this for a baby shower that I threw as well.