last I checked I am signed up with at least 140 companies....and planning to sign up for more as I see them out there....
I keep track of the companies I am with by having a special folder in my email with the login info....I did start a file some time ago of the companies and who they shop for but didn't get much further than that...it can get confusing at times but I manage
Silver certified (since 2009) and willing to do shops all around the greater Chicago, NW Indiana, and Southern Wisconsin areas (including airports!.