I use to write mine letters or send cards. It was fun finding cards to "fit" what I was trying to express or feeling and made me feel like I was helping myself too with the physical going out and getting or mailing. When I mailed them I could imagine my T getting the letter and reading it. It really helped when she was away on vacation for several weeks at a time. I didn't feel "guilty" or like it was too much of an imposition since they could technically just throw the letters away in the trash/not read them/read them when they had time, etc.