Use the Wishlist feature to place items on your "wishlist" and go back to them later. You can also send your list to friends and family so they know exactly what you want!
Just use the Add to Wishlist button at the bottom of the product information page. Once you have items on your list, the email form will appear on your "my wishlist" page so you can send your list.
You can also add products to your cart or delete them from the wishlist when reviewing by selecting which ones your changes will affect, then clicking the delete button or add to cart button.