I am going on a trip to Washington DC next week, and will be there for six days. I'm staying at a relative's house for free. I found a bike map of the area, and discovered the house is very close to the Potomac River (@ Chain Bridge). Basically, this means I'll have easy access to bike paths that will take me directly to most of the attractions (National Mall, etc). I found a bike shop in the area that rents bikes at a minimum rate of $140 for five days. I'm sure I'll have to put a deposit on it, and if the bike gets stolen, I'd likely lose hundreds of dollars more. (This would be a concern since I would probably leave the bike unattended for hours while touring the Smithsonian, for example). So, my question is, why pay $140 plus and risk losing a deposit, when I could probably pick up a Walmart cruiser for $100, not worry about it getting stolen, and then just abandon it at the end of the week? I'm sure if I left it on the curb with a "free" sign on it and posted an ad in the free section on craigslist, it would be gone within the hour. Thoughts?