Michael's Arts and Crafts
They carry a DIY BRIDES brand of invitations there. They are SUPER easy to do. I hate printing/formatting stuff and I found it extremely easy. They look expensive, but they cost about $1/each.
I went into the store looking to save money, and I was happy to find that I got what I was asking for. The service of the ladies working there was very nice, and I didn't have any hassles. All the wedding stuff was in the same place, and I didn't have an trouble. I got the invitations on sale, and the instructions were very easy. I went home and did them on my computer, and what great is that everything was in stock at the store, and all my favors, invitations, announcements, and thank-you notes matched. It was very nice to see everything coordinate so nicely.