The briefcase can hold either a disk or five stacks of cash. Click to open and close the case. The briefcase cannot be held in an inventory slot. When the briefcase is open, you can put things in and take things out of it, using the Shift+R or the R key if the case is in your left hand. You can put the case in your left hand so that it doesn't obstruct eyesight when holding it.
- You can give another team a briefcase that is empty while telling them it contains the stacks or disk they want.
- Briefcases are useful to prevent the team you are trading with from driving away without paying you, because they require the team to look into the case and see that the item they need is inside the case.