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A Robot Vacuum Cleaner Review A robot vacuum can take chunks off your list of tasks and let you do other things. It's important to remember that robots can't substitute for a full-sized vacuum. Robotic vacs have smaller dustbins than traditional vacuums. They must be emptying more frequently. Find models that self-empty docking stations to eliminate the need to empty manually. 1. It's easy to use While robots aren't quite as powerful as the dirt-busting power of a full-size vacuum cleane