Crazy DIY Flying Robot Vacuum Might Just Be What We Really Need - SHOUTS
sTetro: A Modular Reconfigurable Staircase Cleaning Robot - YouTube
iRobot Roomba j7 (7150) Robot Vacuum – Identifies and Avoids Obstacles like Pet Waste and Cords, Smart Mapping, Wi-Fi Connected j715020 - The Home Depot
SereneLife Pure Clean Robot Vacuum Cleaner - Upgraded Lithium Battery 90 Min Run Time - Automatic Bot Self Detects Stairs Pet Hair Allergies Friendly Robotic Home Cleaning for Carpet Hardwood Floor
Finally a robotic way to clean the stairs : r/roomba