Ooh, thanks for the heads up! I picked up one bottle of purity and Flash shipping, and I was able to use a $25 promo code! I went with PARTYPROOF (it originally had your choice of one of three UD minis -- Perversion mascara, Primer Potion, or All-Nighter setting spray -- but was down to just the PP and, uh, the setting spray, if I recall correctly) and picked the Primer Potion (because I will always accept a mini of that stuff). That may actually be all I end up getting since I'm not super bonkers about anything else they have on tap for Black Friday.
(I went ahead and picked up Flash shipping because I might as well go for it now. It just makes sense since it was only four dollars more than one-time shipping on a single item.)
(It's funny: Although this staggering of the specials is almost definitely intended to get people to make four $25 orders instead of one $50 order, I may end up spending less at Sephora this time around because of it. It's easier for me to justify adding two or three other things as long as I'm buying the main thing I want, but if I have to go back later to check and see what's up later, I'm most likely not going to bother.)