Oh! We only have the Pyxis Medstation (2 drawer), not a big cabinet. Meds are dispensed from there. We want to keep close track of them because of the need to make labels for them and get them into the machine.
Scenario specific supplies are placed in a bin in the control room by the tech when the room is set up (like blood bags). These are things that are deducted by the EMS system.
We keep commonly used supplies (like oxygen masks and syringes) in carts in the rooms. When we have to pull out a new box of something (like alcohol wipes or gloves), we know it's time to reorder a box.
My Sim Center is in Anaheim, California.