Storage solutions, keeping track of emptying trays.
So I have 3 Akro-Mils 10124 24-Drawer Storage Cabinets, each on is labeled MF - T01 to MF - T72 These are used for only Mini Figures and when I add to my BL store I put the tray number in the My Remarks: section so when I get an order I can see which tray that MF are in, it is relatively easy then to pick an order as each tray only holds around 10 to 15 MFs.
Now as I empty a tray or it gets low I need to replenish it instead of buying more Akro-Mils, but I have no way of remembering which trays are getting low unless I physically check each time.
Does anyone have a quick and easy solution that would help me keep track of this?