Two questions for those who have used gift cards before.
Can a purchase be completely covered by gift cards, including tax and shipping, etc?
What if there are some dollars left in the last gift card? Will the left-over amount still be available for a later purchase or will they be gone because the card has been marked as used?
Just confirmed that a purchase, including tax and shipping, can be completely covered by gift cards. Remaining balance on the last gift card can be seen by clicking at the Check Status button.
A note: After the order is covered by the gift cards, the checkout process still requires the user to go through Shipping, then Payment, at that point a message shows up to indicate that the order is covered by gift cards.
Tip: The gift cards are in descending chronological order, i.e. the newest ones are on page 1 while the oldest ones are on the last page. Start from the last page and work backwards to use the oldest cards first.