Pfft... Weerdo. You park in your garage? Seriously, I currently only have 1 car, and may add a 2nd eventually, but my next house will hopefully have a 3-4 car garage just for the space to do stuff. lol.
Gym/Storage/Extra fridge. Shed for lawn care stuff. We don't really have much of an attic. Just completed my 39th workout of the year (in 81 days).
I just remembered : When I built my first house, they put an attic access door in the garage and put some plywood flooring or something up there for storage. I've never used that storage. As a matter of fact, I never even requested it - I think the builder accidentally added it to my house. I can't imagine I'd be able to put anything heavy up there or anything that would succumb to heat/cold. I don't think I've been up there in about 15 years.
Garages are a premium add-on where I live. We had to decide between a garage out in the boonies with a longer commute, or no garage in a nicer location with less of a commute. We sacrificed the garage to live in a good area with a good school pyramid, and don't regret it. However, I did have to supplement storage space with a bunch of sheds and deck boxes in the backyard, to store the normal things you would keep in a garage.
My house was built in the 1930s. The original garage was turned into a guest house sometime before I bought the place. So i park guests in my garage. My wife uses the downstairs as a recording studio, and there's a guest bedroom/bath upstairs.
Our builder did the same thing on our last house. Only difference was they didn't build a pulldown ladder for it. So any time I wanted to get stuff in or out of it, I would take my life into my own hands by using a little 6-foot ladder and just pulling myself up. It was weird. We asked the builder if they could build a pulldown ladder and they were like "we don't do that." So I asked again if they could do it off the record and I'd just pay him cash and he said the same thing. Who builds an attic over the garage but then refuses UNDER ANY CIRCUMSTANCES to include a pulldown ladder?
Not putting the ladder in is weird. In my case, it had the ladder. The attic access ladder was actually an option during the build, but I never selected it. I'm not sure what I'd store up there, tbh, but like I said, I never put anything up there. I found out (about 10 years later when I went up there) the builder left some hardware like shelving brackets up there that I'll probably take with me when I move. lol.
No one? 3 car garage...2 cars, work bench, and other associated stuff, 2nd fridge. Lucky thing is that my house was a former model home and the office for the builder. So the garage has outlets and lighting all over, along with it's own hvac. I don't use it much because the garage faces west and the sun turns the doors into 2 large radiators, so the system can't keep up. I really need to insulate the doors.
2 car garage I keep my truck and have a gym. 1 car garage I store lawn equipment, tools, and kids bikes. I would like to turn the 1 car garage into an extra bedroom at some point.