Tonight, Pilsen’s Knee Deep Vintage celebrates its first anniversary by offering 25 to 50 percent off the already budget-friendly styles until midnight. Plus, buy two items, get a third one (of equal or lesser value) free.

Starting today through Sunday, West Loop boutique Koros offers its own stimulus package: you’ll get $10 back in cold, hard cash for every $100 spent in the store (sale merch is excluded).

Saturday and Sunday, Southport stalwart Tula holds a trunk show of jewelry by local designer Ulia Carrella and presents new spring items from Hache, Geren Ford, and Chan Luu, among others.

On Saturday night, trend-conscious boutique powerhouse Akira presents new looks from its spring collection as part of an Rock.Rehab.Rednofive, an 11-year anniversary bash for the Fulton Market club.