Way back in 1972 I made a survival pack for DH to take with him deer hunting. In 1985 we were in Hong Kong and fanny packs were all the rage. Why didn't I think to patent that fanny pack!? The other strange thing I made was a door hanging sewing caddy. I took old jeans and made it big enough to hold my big cutting mats, rulers, and everything else you need for sewing and quilting. Now I am designing a battery pack for a friends leg nerve stimulator.