Vacuuming sucks, but getting a robot vacuum on sale for $40 off doesn't

TL;DR: Save $40 on an open-box iRobot Roomba E5 vacuum. It works with Amazon Alexa and the iRobot Home app.Opens in a new windowCredit: iRobotiRobot Roomba E5 (5150) Wi-Fi Robot Vacuum (Open Box)$159.99 at The Mashable Shop $199.99 Save $40.00Get DealIt happened again: Your kid (or dog, who may as well be your child) just tracked in you-don’t-even-know-what from the backyard. Grass? Dirt? You’d rather not know — it's time to drag out the vacuum for the second time today. You de