Hayes Valley shop Azalea has two promotions going on this Saturday, August 20th. First off, if you wear a tie of any sort, you instantly get 5% off your purchase. And then, if you arrive between 4-6 p.m. you'll be able to meet folks from AOL who will be showing off their new, hyper-personalized iPad app, Editions (read all about it here). Then, simply take the app for a spin at the shop and score a free "Z" manicure in Azalea's in-store nail salon in exchange. Speaking of fashion-meets-tech mash-ups, check out our roundup of the best style apps to download stat!