The Sims 3 Store slashed the Simpoints in half for 5 sets of outfits:  Steampunk Savvy, Jet Set Elders, Victorian Fashions, Jet Set Teens, and Jet Set.  If these are listed on your to-purchase list, now would be the time to get them as they’ll return to regular price on December 21st.  Thanks to Sims 3 Nieuws for bringing this to my attention!