Label Maker: A label maker can take your organization to the next level. Use it to create clear, easy-to-read labels for your bins, boxes, and shelves. This will save you time and frustration when searching for specific items. 

Moisture Absorber: If your storage locker is prone to humidity, consider using moisture absorbers to keep your belongings dry. These can be placed in corners or near items that are particularly susceptible to moisture damage. 

Heavy-Duty Straps or Ropes: For larger items that can't be neatly stacked, use heavy-duty straps or ropes to secure them in place. This will prevent them from shifting or falling during transport or if the locker is accessed frequently. 

Flashlight or Headlamp: A flashlight or headlamp is essential for navigating your storage locker in low-light conditions. Make sure to keep one charged and easily accessible in case you need to retrieve something after hours. 

Insurance Information: Finally, don't forget to keep a copy of your storage locker insurance policy and any relevant contact information for your storage facility handy. This will come in handy in case of an emergency or if you need to file a claim. By equipping your storage locker with these must-have items, you can ensure that your belongings are organized, protected, and easy to access whenever you need them.