I have always used furniture covers on my sofa as it gets the most use. I like the one piece covers, less work, but even the more expensive sofa covers don't stay in place. I came across these grips as I was browsing Overstock's sofa slipcovers which was a perfect place to offer these grips. So I decided to try the grips with my old slipping slipcover first. They work great! Over time and use, like anything they will loosen but, I no longer have to straighten the slipcover everyday! Once a week maybe and even then, it's not even that jostled up. Very pleased cause they work!