Even if you don't need a new vacuum right now, $330 off for Dyson's lightest cordless ever is just too good a deal to pass up.

SAVE OVER $250: As of Nov. 24, the Roborock Q10 S5+ robot vacuum and mop has dropped to $259.99 in the Amazon Black Friday sale. This is $290 off and its lowest-ever price.

There’s nothing quite like the Dyson V11 Cordless Stick Vacuum for the job, and QVC’s Black Friday sale means that you can get one for 36% off before festivities really get underway. Plus, there’s free shipping all weekend long!

Scroll on to see the most important considerations consumers should keep in mind when vacuum shopping, as well as tips on how to choose the best vacuum for you and your home. Ina Mundy, director of category management overseeing small domestic appliances at Miele North American Region One of the most common mistakes our experts see?

It has nothing to do with the discounts themselves — it's iRobot's ongoing struggle to sell Roombas this year.

Nap time does not need to sound like a recording studio. Predictable household noise can actually help babies and toddlers learn sleep resilience.

"The cost of one professional upholstery or car interior cleaning would be more than the price of this device," one reviewer wrote.

After putting robot vacuums through rigorous cleaning tests, we designated four winners that will efficiently tidy up your space—with picks from Roomba, Eufy and more.