Swap.com has simplified the entire process of buying and selling pre-owned items with its proprietary technology. With and inventory of 1.5 million items—and counting—for women, men and children, Swap.com is the largest online store for thrift and consignment. As a result, shoppers never have to leave the privacy of their home to shop for gently-used items, sift through piles and piles of clothes to find what they need.