Life passes us by so quickly; don't let those treasured memories be forgotten. Write down the stories of the things she said and did. Save them for yourself, but also save them for her so you can share them later.
Share the love you felt. Share the thoughts you had. Share the funny things and the sad things and the little things we all lose in the sands of time.
Contemporaneous memos about how much you love her will mean the world to her later. Save all those little things. Give the gift of your love in a way that will last.