Sorry, yet another pitch from the one brand of skincare I am besotted with: Paula's choice. She must have read my post, because she put the serums on sale at 20% off. If you sign up through the the link, you get $10 off and so do I.
Also, usually you get free shipping on a $50 purchase, but at the moment, you get free shipping on any order. So you can buy a single item at $10 off, get free shipping, and also get Paula's money-back guarantee.
I'm ordering a serum right now. Thanks to the one reader who ordered!