We interrupt the last days of 2017 to bring news that will no doubt bring a smile to your face. If your wallet had a face, it would also be smiling, because until Jan. 1, Sephora is offering a sale on sale. Yup, you can get in on a sale squared — that's our favorite kind of math problem.
Here are the details, quick and dirty, so you can start shopping: if you are a Sephora Beauty Insider (and who isn't at this point?), all you have to do is enter the code SALEONSALE at checkout to reap the rewards of 20 percent off already discounted goodies.
Need some shopping cart inspo? Here are some of our favorite reduced price items — get 'em while they're hot (and in stock).