Velcro is the quiet best friend of the messy couch-lover. Get the heavy-duty, stick-on kind (not the craft stuff). Stick the hooks on the cushion bottom, the loops on the sofa base.
Snap the cushion down. It clicks into place with a satisfying rrrrrip. Now, every time you sit, you’re locking in a tiny victory. It’s like a seatbelt for your butt.
Fun warning: If you have a cat, be careful. That Velcro sound might trigger their “I must investigate immediately” instinct. You’ve been warned.
How To Keep A Sectional Sofa From Sliding at Rodney Hickman blog