What happened to Letter's?

Why don't people write letters to each other anymore? I love receiving letters in the mail--now that hasn't happened since high school, but I always enjoyed them. Letters make people smile and light up! Letters are a great way to stay in touch, especially since schedules often conflict and talking on the phone isn't always the convenient option. Even with emails, you lose the personal connection. We should all write a letter to someone once a week. Someone who can use a smile! :)