Besides knit a carpet 
This is two strand polyester type yarn, quite thin, not soft, more of a cord feel to it. I have three huge cones of it but I am short on ideas of what to do with it other than pass it on to sit in someone else's house
I have lots of wool that I use for crochet but having tried knitting this, crocheting it, well it can be done but the result feels like a crusty knitted dishcloth 
Any ideas?
perhaps actually knitting floor rugs or doormats