Patience is a virtue, and in this case a virtue that can save you money. You could run out and buy apps and games as the mood strikes you, but then the sales would do you no good. Best to bide your time, then pounce when the moment is right. Like now! Gogogo.
Apps
HD Widgets – $0.99 from $1.99
Bass Booster Pro – $0.99 from $1.99
Minimalistic Text – Free from $2.01 (in-app upgrade with promo code 'appgratis')
Games
Rebuild – $0.99 from $2.99
GA2: Siege of the Necromancer – $2.99 from $5.99
Jetpack High – Free from $0.99 (automatic in-app upgrade)