I received many memorable gifts, cook books, books, gin, local specialities, great coffee, travel items, things for my home.

I think my advice to new participants is, think about what you buy based on what they write, and include a card that gives a bit of reasoning to why you picked what you did. Sometimes, adding a card is not easy if you use online shopping but then send a message or separate letter. (I can't swear to always having included the card/note, but I try)