Make a list of others who have blessed or touched your life. This may include pastors, teachers, friends, people at work, neighbors, or writers. Put a check mark by their name if or when you have let them know your appreciation for them.
I am a firm believer in the beauty of sending cards. I delight in receiving them and sending them. It seems that God brings a special note from a friend when I most desperately need it. If you can't call or sit over coffee with someone from this list, send them a card.