They promise weeks of hands-free cleaning, but auto-empty robot vacuums defer maintenance rather than eliminating it. Here's what you need to know about the hidden costs and upkeep before you buy one.

Drying your sleeping bag is the step that requires the most patience. Once rinsed, your bag is going to be heavy with water.

The Deebot X12 OmniCyclone uses pressurized water sprayers to pretreat dried-on stains and to clean its roller mop scrubber.

The Beatbot Sora 70 skips the gimmicky tech and gives you features that actually work to provide a spotless pool.

Your 3D printer is a precision machine, and that means it requires regular maintenance, including cleaning it. Here's what ...