I needed to give some thank you cards to some friends last week. I did an internet search for some easy ideas. Everything in my search looked like something I was not capable of making. So I came up with this.
Use paper punches and scissors for decoration.
Glue on 1 1/2 inch strip from contrasting color. Use a glue stick that dries clear, and you won't have to worry about the spaces from punched out areas.
Fold card so that card color shows at the bottom of contrasting strip. If necessary, you can tidy up the sides with the exacto-knife. I experimented a little with different sizes, but this is the one I like the most. Easy as pie, even for people like me who are not very crafty.