iRobot's Roomba 694 robot vacuum is back on sale for $179

Our current favorite budget robot vacuum is $95 off its usual price at Amazon right now. iRobot's Roomba 694 usually retails for $274 but is seeing a 35 percent discount, putting it just $4 above its all-time low of $174, which the vac dipped to in advance of Black Friday. If you've been curious about automated floor cleaning, but were waiting for a good deal, now might be a great time to see whether a robot vac is for you. We've tested a number of these machines over the years and this model is...