This Roomba combo robot vacuum and mop is nearly half off for the last day of Prime Day

Prime Day is almost over, but there's still time to save on some of our favorite tech. One such deal is on the Roomba Robot Vacuum and Mop Combo, which is down to $140 for Prime members right now. That's nearly half off its usual price and a far cry from its standard $275 cost.

We ranked iRobot's Roomba Robot Vacuum as our overall favorite budget option, but this Prime Day deal features a version that can both vacuum and mop. With the Prime Day price drop, the vacuum and mop combo is cheaper than the vacuum-only model, but it does double the work. The combo Roomba can even be set to only vacuum if you prefer to mop yourself, but you'd be missing out on the four-stage cleaning system that vacuums and mops in the same pass.

Since it's a Roomba ...