Make a Scrapbook: Add a favorite childhood photo, keep sake, note, card....
Join A Club for just the two of you: Book club, tea club, wine club, etc...
Photo Mug, blanket, t-shirts: Make it fun.
Plan a Movie Night or Theatre Night: Stream a movie, take her to a movie or a local play. Don't forget the popcorn and her favorite candy.
Flowers: Pick flowers from your garden or plant one for her.
(Photo source: Canva)