I had shelves and cabinets in my garage and I have them both in my shop. Cabinets store 90% of what I have in both, shelves are good for projects and large parts but, cabinets keep prying eyes out. I have 9 five drawer lateral files that hold everything from hardware to welding supplies. One cabinet is electrical, one drills, taps-dies, reams, hole saws etc. The good quality lateral files are made to hold a few hundred pounds per drawer, several drawers in my cabinets have at least 250-300 pounds in them.
When I got the files I ordered matched lock cylinders and with one key I can lock them up, it keeps the honest folks honest. It also make the catch all sorting nice and tidy when the doors are closed.
Steve