Those of you who believe in real business cycle theory might like to visit Free Patents Online. It provides a free searchable database of patents. The Crazy Patents page makes you wonder who is working late at the patent office. At the top of the list is a method for exercising cats. It involves using a laser pointer. Gosh, I have been doing that for years, but I never viewed it as exercising the cat. It was more like, look at the stupid cat.