Makes Giving Easy
2006-
John Lewis department stores in the UK offer a gift-list service. In the past, a family member would have this massive list with all your presents on, and people would call and ask what needed buying. The John Lewis service streamlines the process - an engaged couple can go around the store with a barcode scanner, scanning all the things they want, and a list is created. This list is then available in-store, and also online.
The online lists are completely open - anybody can access them - and they're searchable by surname.
I sometimes buy small gifts for couples from their lists. This process is documented at www.makes-giving-easy.com. Sometimes the recipients get in touch - their emails are there too.
You should buy someone a gift too - check out https://www.johnlewisgiftlist.com/