Items such as the Golden Stapler or Expense Card is shown to give you brownie points after a day.
How it works:
Equip it in one of the slots.
For every 24 hours equipped, you get the shown amount of BP, or Brownie Points.
For example, after 48 hours after I equipped the Golden Stapler, I gained 4 BP.
Note: Similar items that give BP all stack. So if you buy a Golden Stapler and a Petty Cash, you get 5 brownie points a day! Good Luck!