Seriously, we already have robots that mop and vacuum. Scrubbing tables and taking out trash are just more expensive - it isn't a technically infeasible thing to do right now, especially if you sacrifice some of the magic by just putting UV strips on the tables to indicate where the robot should scrub, or some such.

That eliminates the day labor, you would probably still want a weekly cleaning crew to come around and get in all the nooks and crannies, but it is also reasonable to design buildings around being robot-maintenance friendly, and the more and better of a job the robots can do the less often you need the cleaning crews coming through until you never need them anymore.

The problem right now is that buying a robot that can wipe tables is a large upfront expense few places want to eat up. Prices will come down, though, as they always do. The cost to manufacture machinery is fairly fixed by volume in the endgame anyway, you just have to overcome the R&D costs.

> The problem right now is that buying a robot that can wipe tables

I'm not sure how it would help with the "cleaning" part of things, but what if the tables were robots themselves? Could that help with cleaning?

It could help with a lot of things - for instance, imagine a conference center that could re-arrange itself between groups or conferences, then put itself "away" as needed.

Or imagine a garbage can at some venue that loiters around people with disposable items (and perhaps reminds them about its presence when it senses they need to throw something away - I experience this once at a "human level" at a 5-star hotel, where instead of visible garbage cans, there were people who stood around to take your "garbage").

One could potentially think up many such instances - where everyday items become robots for tasks (which might also help to keep such things clean, as well).