When your budget is as tight as your shapewear, make sure to use a Spanx promo code. You could find a deal to save on leggings, apparel, denim, activewear, bras, panties, and hosiery. Some of the most recent coupon codes gave shoppers discounts like: 1. Up to $26 off select shapewear 2. 10% off 3. 30% off sitewide 4. 25% off sale items