Things perk up quite a bit shopping-wise this weekend. Tonight, local line Crescendo Apparel offers a preview of the spring collection from 5:30 to 8:30 PM at Supreme Fabrics, 2156 W. Huron. “Doctor of Closetology” Jackie Walker and makeup artist Sonia Roselli speak, and cocktails and hors d’oeuvres will be available. A $20 donation goes to the Today’s Chicago Woman Foundation; click here for tickets and more info.