what to write

I have been facing some problems of late. One of the most frustrating things currently is what do you write to people in jail. I have several friends currently doing time, luckily I'm probably going to be getting probation. But most of the time I have no idea what to write them. I normally print some pictures for em off the web and write a brief note of what I've been doing, which lately really ain't much going on. Any ideas would be nice