Ay-yup yup yup.
Here's some old photos of my garage overheads. The crap on them has changed around many times, some's gone, more's been added, but it kinda shows what I'm talking about. It's a mess, but a constantly changing mess. These photos are about 10 years old.
All my 24" overheads along the walls are built with 2"x2" perforated steel angle, because I had a bunch of it. But they could be made out of pine 2x2's even easier, and be just as strong. And far cheaper.
The "loft". There's more stuff up there now than you can believe, including an entire, intact 1956 CJ5 front axle, with brakes on it. And the entire windshield assembly, fenders, grill, radiator, soft top, 10 jerry cans, half of a Harley dresser, and more. And there's another shelf up there you can't see.
http://i18.photobucket.com/albums/b1...e/DSCN0115.jpg
http://i18.photobucket.com/albums/b1...e/DSCN0117.jpg
Shelf over/above the garage door. Use that dead space!
http://i18.photobucket.com/albums/b1...e/DSCN0116.jpg
24" L-shaped shelves along 2 walls.
http://i18.photobucket.com/albums/b1...e/DSCN0120.jpg
All down that wall over the workbench.
http://i18.photobucket.com/albums/b1...e/DSCN0122.jpg
Along the other wall too.
http://i18.photobucket.com/albums/b1...e/DSCN0125.jpg