Ok, ok, I promised bikes and bipolar, not art, but I have to be true to myself. Tomorrow, 9/26, is the Smithsonian's Free Museum Day! Over 800 museums nation wide are offering free admission tomorrow, just go to the site linked here, check out the participating museums near you and download a free admission card.
Hey, museums are expensive these days -- even if you only go to one once or twice a year, take advantage of this opportunity. And while I'm at it, remember that many museums have a free day or evening every month -- First Friday, Third Thursday, whatever. Check it out and go see some art, science, history or whatever. Have fun!