This might actually be the best sale I've ever seen from Paula's Choice. I don't think they usually go above 20% off. Use code SPOOKYSCARY. Expires Oct. 31.
You can also get $10 off a $15+ order with a new account if you use someone's invite link to sign up (here's mine). If you want some ideas about what to buy (and what to skip), here is my Paula's Choice tag.