Name something you might find underneath your couch cushions that just refuse to stay in place can be quite awkward. While some sofas are built to let you zip the pillows to the frame, in many cases you’re left to solve the problem yourself.
Attach name something you might find underneath your couch cushions to both the pillow and the sofa frame. You can buy small Velcro straps on most hardware stores, and many come with a self-adhesive back that makes them very easy to attach to your sofa. Unfortunately, the adhesive can be worn out and may not get stuck on all materials very well, that you need to replace the pillows so often or abandon them completely.
Sew the name something you might find underneath your couch cushions to the pillow and frame. If the adhesive does not hold Velcro straps in place, a small piece of work with a needle and thread can fix the problem. Use a sturdy thread, and hold the Velcro pads in place with some pretty stitches. While the thread can carry down over time, this should still be a more permanent solution than the glue. Combine the two methods. Nothing should prevent you from using both glue and wire to hold a Velcro pad in place. If neither method works well on its own, try both together. The sewing can be a bit more difficult, but the end result will be more durable.