Roomba is my robot vacuum cleaner. He (or she, I'm still not sure) is an incredible little helper. He cleans under all the sofas and cabinets, because he's so small and agile. He knows when he's vacuuming carpets vs. wood floors, and automatically switches vacuuming styles. And when he's all done, he parks himself back on his charger and waits for the next time. Like I said, he's incredible!