As one of its daily deals, Amazon offers the iRobot Roomba 780 Vacuum Cleaning Robot for Pets and Allergies, model no. 78002, for $399.99 with free shipping. That's tied with our mention from last winter as the lowest total price we've seen for this model. (It's also a current low by $100.) It features dual HEPA filters, infrared remote, and up to seven scheduled cleaning sessions per week. Deal ends today.

Update: The price has dropped to $369.99.