It's a shoe-in

We're on borrowed time with our flip-flops, ladies. Face it: It's almost time to tuck your toes into heels, boots, and other cold-weather shoes. Macy's Downtown Crossing aims to get foot fashionistas excited about the changing seasons at tonight's "Shoe Diva" fashion show, which will focus on what's hot and sassy for fall. Refreshments, "Divatinis," and a DJ will warm you up from toe to head; be sure to wear your favorite shoes for the Shoe Diva walk-off, which will culminate in a "Best in Shoe." If you spend $150 on shoes, you'll go home with a gift bag of makeup brushes, a key chain, notebook, and cosmetic and tote bags. 6 p.m. Free. Macy's Downtown Crossing, Boston. www.macys.com/events