Share 'Slippery Slippers'

I have had a couple requests from family members (read "Christmas List recipients") for knitted/crocheted slippers, but I have an issue with the fact that yarn fabrics on hard wood floors are way to slipprey to be safe.  Granted, I have arthritic feet that don't always work great, but I have seen way to many spills from stairs, on the kitchen floor, etc. by grandkids, siblings, etc. Have you had…