If you've been looking to buy a cordless vacuum, or give one as a generous gift, now is a great time to do so: The excellent Dyson V15 Detect Cordless Vacuum -- the one with a laser that can reveal microscopic allergens, and measure how many particles it's picking up -- is currently$200 off at Walmart for Black Friday.

Dyson V15 Detect Cordless Vacuum

View now at Walmart

I splurged on a Dyson V15 Detect vacuum over a year ago, and it's been one of my favorite home purchases -- it's got a long battery life, and I love being able to see all of the gross things it's picking up. And with a toddler prone to throwing food and a constantly-shedding cat in the house, it's been a lifesaver to pull out of the closet at a moment's notice and not have to worry about plugging it in. 

The Dyson is also super easy to empty, without getting any mess on yourself. I use it on carpet, hardwood, and tile floors, and it works great. 

You can also check out all of the other best Black Friday deals we've found so far. And if you're in the market for a robot vacuum, we've rounded up the best Black Friday robot vacuum deals, too.

Top holiday deals

Best holiday deals

Top holiday robot vacuum deals

Best holiday Apple deals

Top holiday TV deals

• Best holiday deals
• Top holiday robot vacuum deals
• Best holiday Apple deals
• Top holiday TV deals