Pool towel racks are great to dry out wet but perfectly clean towels so they can be used again later in the day or stored away with your supply of beach/pool towels. Make one yourself for a few bucks in PVC components using plans from eHow.
The greenhouse in the country: do with their hands out of PVC pipe. Detailed instructions with diagrams for the greenhouse of plastic pipes. Two variants of the greenhouse: one entirely of PVC pipe, the other of the pipes on a wooden frame.