vacuums tend to be pretty self-sufficient, cleaning floors, committing burglaries
, and even making futile attempts at communication
. Cleaning themselves, however, is something they cannot do, but that may change if a recently unearthed 2007 patent application filed by iRobot ever results in an actual product. The app shows a variety of designs for docks that would either suck the detritus right out of your little guy or replace its dirt cartridge altogether, strip any wound-up hair from its brushes, and then send it back on its way to give your cat a lift
to is litter box. No word on whether iRobot has something based on these designs anywhere near production-ready, but we wouldn't recommend giving away that robot changing table.