I threw together a sheet to track your players' retainers/hirelings using the Easy-Ass Retainer System. Oh, and it also has a spot for session notes, and some other stuff that I track when I DM. You didn't think I was making this strictly for you, did you? Heaven forfend.
Marvel at its glory!
If you print it front and back, then you can track the small, personal armies of up to 8 of your Player Characters on a single piece of paper. It's all about efficiency here at DnA headquarters.