I bought a piece of 1.5 inch stiff foam to try to fix a sag in a bed. It didn’t work but having that thick piece of solid foam around has been a life saver.
Need something flat to put a laptop on? Throw it on the foam. Going to be doing something that requires you to be on your knees for a while? Get the foam!
It went from stupid purchase to something I’d gladly replace if it broke.
When I worked at a small startup, we were moving to a new office and I was asked to help with the buildout. I engaged with the flooring vendor, and he came by one day to drop off a carpet sample. He put it on my desk where my mouse was. It was a rectangle sample of tight knit office carpet, about 18”x22”. When I got back to my desk, I just put my mouse on top of it and started using it as a mouse pad. That was 15 years and 3 companies ago, and I still use it as my mousepad. It’s perfect for the mouse to glide on, soft enough for my wrist to rest on, absorbent of sweat or drink condensation, and large enough I never hit the edge. I will never not use it. It is my mouse carpet, and I love it.
I work in automotive interiors tooling. We had a customer bring by a sample of this headliner material. But they brought an entire roll of it, four feet wide, no idea how long. Probably 75 feet. I cut a couple feet off of it, now my whole desk is a mousepad.