Actually, there are lots of things blocks can be used for. Harken sells a system for hoisting stuff up in your garage. And I need a block-and-tackle system myself to create a sort of "dumb waiter" to hoist groceries up to the second floor where we live in the summer.

P.S. We had a bright yellow Hobie 18, including trailer,stolen a number of years ago, and never found it. <img src="http://www.catsailor.com/forums/images/graemlins/frown.gif" alt="" />