ZynExpress Extension is designed to help aggregate items from several shopping carts to a central location, where a final, single checkout can then be done. Simply put, it is used to transfer cart items from an online store cart to a ZynExpress cart. A shopper visits their favorite online store that ZynExpress supports, selects items into their cart on that website, then uses ZynExpress browser extension to send the items to the user's cart on the zynexpress.com website. The is repeated on as many supported websites as the user desires. Once all shopping is completed, the user then goes to zynexpress.com to check out once.