You don't want the same grabber that's scrubbing the toilet and picking up your dirty laundry to also be picking up your kids' toys, or packing away your groceries, let alone preparing food.
More seriously, Stretch actually looks pretty straight forward so I could imagine a combo-charging/dock/cleaning station where it can swap tools (ie, grab a vacuum, drop off mop, etc) and get cleaned by the cleaning station. Also once the robot is in a more finalized version, its not unthinkable to make one that is waterproof enough to go through a carwash type device.
If we can switch between tools quickly we can possibly unlock a wide range of applications: imagine a robot that can switch arms from a whisk to a spatula to a duster to to a mop all over the course of preparing a meal, and then switch to a screwdriver or a wrench for fixing something afterwards. Will take work to design modular parts like that, but the end result can be quite exciting indeed.