Vacuuming a house can be an annoying chore.
Robots exist (famously, the Roomba) that will vacuum a floor, but they have many limitations and can’t handle certain common locations, like carpeted stairs.
What is needed is a vacuum cleaner that can go anywhere that gets foot traffic. And what better way to do that than to have the vacuum also be a shoe (Figure 1)?
The shoe-vacuum solves so many problems: because the wearer will just be incidentally vacuuming while walking around, the vacuuming is done “for free” without requiring any additional effort. Additionally, areas that get a lot of activity—and thus, probably need frequent vacuuming—will also get a lot of shoe-vacuum traffic.
Throw away your “indoor slippers” and replace them with these vacuum cleaner shoes!
PROS: Allows a person to effortlessly maintain a vacuum-cleaned domicile.
CONS: Doesn’t solve the vacuuming-under-furniture issue. Might dramatically increase the number of injuries caused by falling down stairs.