I wish I could find those big tubs with translucent covers. Every place I've shopped, the lids are completley opaque. I had to put 2 mil translucent plastic film over the tubs and cut slits.
I was thinking that, next winter, maybe I would set some trays, cups or pots on something like plywood or wood paneling, then set big clear tubs UPSIDE DOWN over the WS pots.