An invitation to do something special together is always a favorite choice. (Theater, hikes, a “let’s build a lego kit/model together” date, museum visits, a shared meal, a class together, etc. are great! I have a tough time with loud or crowded events.)
I find gifts that you’ve made especially meaningful.
Books, especially those from my to-read list, are always welcome.
Tea, of course. I favor black teas, as a rule. Celestial Seasonings Fast Lane is a favorite, and I’d like to try Creme de la Earl.