The wagon tarpaulin thing comes at a good time for me. I made one out of a piece of glasses cleaning cloth glued to a bit of stiff paper and bent into shape recently, but I'm not 100% happy with it - it looks a bit too coarse. It'll do for the time being, but I will have another wagon to do, so the "kleenex" sounds well worth a try.
What sort of bath sealant is recommended?