We recently got a new couch and decided to cover some pillows to make it a little more comfortable. I bought two pillow forms from IKEA and decided to make some envelope pillow covers. Envelope pillow covers are my favorite - they fit well, look great, and sew up very quickly. :D
This is super easy and should take about a half hour per envelope pillow cover once you get into the swing of things.
Plus, these envelope pillow covers are washable! Yay!
Some words of caution:
If you plan to wash this pillow cover, wash the fabric beforehand in the way you normally wash. Otherwise, the unwashed sewn fabric can shrink in a hot wash or dryer later and cause seam rippage.
If you're in a hurry to get started, make sure to at least steam press your fabric.
You'll just need to wash it normally and hang it out to dry later! This will keep your pillow cover in nice shape. :D