I'm using the metal ones you can get at any hardware store.
Something like this:
Shelves at Home Depot
I'm considering pulling them all out and putting in upper kitchen cabinets all over the place. It's cheaper than using garage specific stuff and works just as well, IMO.
I also have three of these:
Plastic storage cabinet
And one of these:
18" deep storage shelves
I made a 6' work bench out of lower kitchen cabinets and counter top. I need to install 1/4" ply on across the back to tighten it up more because I want to mount large casters on the bottom so I can move it around.