I like the idea of putting up a flannel sheet, but think I might want to put it over the bed, as there will be more room on it.. I was also thinking of using scotch tape to put the squares on . I can't get to the window sill, as my cutting table is against it and the radiator is there. I don't care what people would think if they saw it hanging up in the bedroom, as this place looks like a grenade went off in a fabric store, and they have to take me for whom I am, and not that I don't clean well..