Diatomaceous earth for sure, I've used it and it worked great. It's a little messy but well worth the mess to get rid of the suckers. You don't need to use a ton, a very fine layer anywhere you can get it on the floor, especially on edges,corners, carpet. Take a few old socks, layer them together, put powder in and lightly smack to distribute.. go slow otherwise it gets dusty fast. We also made a homemade pet safe spray to spray on furniture etc to deter them off and on to the ground. I can't remember what it was, just something we found online made with essential oils. Good luck fren, No surrender as always.