I actually have two sets of keys.
One for the office side of my job - includes keys for entry, office door, locked storage, & 3 separate filing cabinets (total of 6 keys).
The bar keys include - entry door, office door, mailbox, safe key, freezer key, iPod key (my boss insisted that it be secured to prevent theft) and a few that I am not sure what they go to. (I think there ere 8 - 10 keys)