Celebrate President's Day the right way -- by saving a bunch of cash on the tech recommended by Engadget reviewers.

Yes, the fuel economy is horrendous. Yes, it's not the easiest thing to park. But this is one of those cases where the conscious, logical brain is kept at bay.

The Roborock Saros 10R robot vacuum and mop is a fully-loaded cleaning system. It's ultra-slim and features a true ...