Plug in the cord and turn on the overhead light built into the unit.
Organize your tools to separate those that you use most frequently from those that you only use occasionally.
Hang the tools you use frequently from the peg board at the back of the unit. On some models, hang larger tools from conveniently placed hooks on the sides. If your unit does not have these, add them to it yourself.
Organize the tools you use less frequently in the drawers. If the drawer bottoms are made of manufactured wood on your model, be careful not to overload them. The wooden drawers will not support as much weight as metal drawer bottoms.