The list of early Prime Day deals keep growing. If you’re a Prime member, you can get 21 free photo prints when you enter promo code PRINTS21 at checkout. You can select either a glossy or matte finish on the prints and you can select either 4×6 or 4×5.3 sized prints. Then just upload your photos or select from the ones you already have in your Prime Photos account. Delivery is free as well. Amazon normally charges $0.15 per print, so you’re getting $3.15 worth of prints for free, but, hey, free is free.