Having slipped down the stairs (more than once in my life) while shoveling snow, it occured to me that a snow blower the size of a swiffer or shop vac would be most handy. A light weight snow blower that cleans the stairs without bending and scraping and heaving heavy loads of snow from dangerous stairs.

The electric lawnmower will cut the grass while you relax, and will even know to avoid the flowers. The lawnmower will be able to mow almost 20,000 square feet on one battery charge, returning automatically to its charging station when its power is low. It will navigate by use of a boundary wire installed at the edges of the garden or flowerbeds and will back away from obstacles on the lawn, such as trees or plant containers.