You want one of these http://www.irobot.com/For-the-Home/Vacuum-Cleaning/Roomba.aspx
@aggi started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
You want one of these http://www.irobot.com/For-the-Home/Vacuum-Cleaning/Roomba.aspx