What’s in Madewell’s secret sauce? Whatever the brand uses to spike its apparel with universal appeal is nothing short of magic. And, try as we might, we just can’t seem to stop browsing the brand’s site. As of today, it’s gotten even trickier to tear ourselves away thanks to the retailer’s Summer Faves Sale, where you can get 20% off select warm-weather essentials. Simply insert the promo code “WARMUP” at checkout to see that $$$ drop — and you have until May 11 to stock up on some dresses, tops, jean shorts, and more.