I bought several gifts for family members but they all arrived at the same time and I forgot who got what. How can I see purchased items for a list that isn't my own?
Append ?reveal=purchased to the URL. Normal URL query string rules apply. If there is already a ? char in the URL, then you have to use &reveal=purchased instead. Christmas is saved!
Credit to tintin825 on reddit: https://www.reddit.com/r/amazon/comments/2k8gr8/did_amazons_wishlist_function_take_away_the/cmt2kau/