I was cruising through Bed Bath and Beyond the other day and I saw this grey plastic non stick liner. I believe it is for cabinets and under the sink. It was about $12. Unfortunately, I can't find the box it came in. I believe it was up where the checkout counter is?? At any rate I figured for $12 bucks let me give it a shot. So I took it home and I put it in the back of the PiP. I had to cut it down so it would fit. I put clear packing tape on the back side (floor side) to hold the two pieces together. So, for 12 bucks and for the time being, it works well at keeping dirt and grime off the carpet (ie my wifes potted plants etc). Because it is NOT the sticky back type you can just slide it out! The other nice thing is when I want to get into the little compartment where you put the charging cord it's easy to just flip it up as the plastic paper liner is very flexible. I like the way the grey matches the interior. Rob