Robot vacuums have been around for quite some time. They get more sophisticated all the time though. The Neato Botvac D80 happens to be a sophisticated vacuum with a laser mapping and projection system to scan and map your rooms. It picks up dirt, crumbs, dust bunnies, pet hair, and other small things. You get a spiral blade brush and a combo brush with your purchase.
The Neato Botvac D80 knows when it is running low on battery and returns to the charging base automatically. You can set a cleaning schedule that works for you easily. More information is available here.