"Last chance for 30% off!!!"
Decoded: "We'll have a different sale tomorrow."
"Up to 75% off in stores now!"
Decoded: "Some of the markdowns will be 75% off, but most are under 50%."
"Take an extra 20% off of sale items this week only."
Decoded: "We don't really want to go through the trouble of marking down things now, but we'll have to mark an additional 20% off next week if anything is left over."
Thrifty little tip: No matter what threats or promises those retail stores are throwing at you post-holidays, just remember that prices are bound to keep dropping. Decide for yourself if you'd like to risk waiting for another price drop before your favorite sweater sells out (if there are dozens available, it probably won't!).