Sephora cuts 20% off items sitewide with no minimum required during its Friends and Family Sale. (Enter your email address and a coupon code will immediately be mailed to you.) Even better, it stacks with sale items, which are already marked up to 75% off. Plus, get three samples with every order for free. That's the best sitewide coupon we've seen from Sephora so far this year. Shipping adds $5.95, but orders of $50 or more qualify for free shipping. Sales tax added where applicable. Coupon expires November 2. Some best bets, with prices after coupon: