My shop shares a two-car garage with my wife's car. When I need a little more space, I put her car in the driveway (but not for too long).
It has been a challenge to find a layout that works. After
re-arranging the benches and stationary tools several times, I've
finally found a pretty good arrangement for work flow.
A bigger
challenge has been storage space. I have my first workbench that I now use for tool storage, and a good-sized rolling tool cabinet, but I only have one wall available. I've had to be pretty selective in what goes within easy reach, and what gets boxed up and put on a shelf or in the attic.
I have several ideas for storage
cabinets, but need to find the time to get those made.