Make envelopes out of patterned paper

Here's a blank envelope template you can download. (Either print it on plain cardstock to cut out as a template for tracing around, or print it directly on the back of your patterned paper like I did here). Of course, you can also take apart any envelope, flatten it out, and use that as a template, too.

This envelope, after folding, is 5.75 x 4.5 inches. It holds a 5.5 x 4.25 enclosure (a quarter of a letter-sized sheet).