Using those foil bags

One thing that annoys me is all those items that come in plastic and foil bags. I try to purchase things that don't use them, but sometimes it is just impossible to get away from them. SO I have a new use for the foil bags (ie: potato chip type bags) I sew a pouch in a simple square or rectangle out of polar fleece, then I put one or two bags into in (after washing out and drying the bag) and then sewing up the end. It makes a great crinkle mat for the cats to play on and is washable, though I do recommend hanging to dry. The cats love the noise and the foil also keeps their body heat making the pad a little warmer to lay on, and we all know cats love to warm places to sleep. if anyone has any other suggestions or uses for plastic and foil bags, let me know. (Plastic bags can be recycled, and many grocery stores to have bins to accept them)