When I ordered personalized stationery, I used to spend the extra $50+ on lined envelopes, as they add so much to the look of the notecard, and it’s such a pretty surprise when you open an envelope. Once I realized that I could line them myself for literally pennies (and a quick feeling of accomplishment), I started lining envelopes myself.
small piece of cardboard
pencil and paper
pretty gift wrap, wallpaper, or scrapbooking paper
Step 1: First, trace the full-sized envelope onto a piece of paper and cut it out. While cutting, eyeball and trim it about 1/4 of an inch smaller (width) to easily fit inside the envelope. It only needs to cover the part of the envelope you can see, so you only need about 3/4 of the length of the envelope.
Step 2: Trace the smaller-sized paper onto a thin piece of cardboard and cut that out. Now you have a hefty template that will last the entire box of envelopes.
Step 3: Place the cardboard onto a piece of wrapping paper, pretty wallpaper, scrapbook paper and trace around it with an exacto knife. Using a glue stick, glue only the top edge of the paper, and glue it onto the envelope just down from the gluestrip that you lick to seal the envelope. Fold at the bend of the envelope top and Bob’s Your Uncle. (Google that phrase if you don’t know what it means and you’ll start using it too.) 😉