Affiliate Tracking

What do you guys use to keep track of all your different affiliate accounts? As I grow and sign up for more I wanna make sure I find the best method to stay organized.

Well, This is really great question.

Well I just add the website to my favorites in my browser. I make a folder called Affiliate Networks, then another for Exchanges, and one for highly ranked Forums.
As I join, I save to the corresponding folder. Sounds lame, but it works for me.
Never really searched to see if there is a software solution for this.