My favorite Dyson cordless vacuum is $150 off (just in time for spring cleaning)

If you've been looking to buy a cordless vacuum, 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 $650 at Amazon, even a week before the Big Spring Sale event kicks off. 

Also: The best early Amazon Spring Sale deals live now

That's a $150 savings on one of Dyson's premium (and popular) vacuum cleaners. This isn't the best price I've seen for this vacuum (it was on sale for $200 off just a few weeks ago for Presidents' Day), but it is the first time I've seen savings offered on it since. 

I splurged on a Dyson V15 Detect vacuum over a year ago, and it's been one of my favorite home purchases ...