No idea. I only made it through the first 15 pages last night...
There is a bunch of uninteresting stuff on GarageJournal, but there are a few gems that are really amazing. There was one thread where a guy excavated 2 stories down under his 2-stall garage and built a multi-level man cave including a gun room... It was awesome.
When I have the time, I'll post a few links for some really awesome builds that I've been exploring. There are also lots of good ideas for efficient storage and organization on GJ.