DIY pipe shelf construction- this might be the perfect solution for a cheap, large storage/ desk space in my office. I would put a thin pipe in front of shelves to hold things in place. This would make a fabulous pantry - wall-to-wall, floor-to-ceiling!
Simple Cheap Air Conditioner-- This would be nice after a hurricane if the fan was battery powered. Neat idea for personal cooling. I'm sure it wouldn't cool an entire room, but a couple of these would be nice to help out since the heat after a hurricane
Build A Super Simple, Solar Hot Water Heater -Super simple, low cost solar hot water heater, that heats the water to degrees between to Not only does the video explain how.maybe use for the animals water in the winter.