Funny you should post this, Fred.
Just today I decided to put a small window shaker AC in one of my garage windows so I can do stuff in there for a change, instead of limiting my time to short periods while sweating profusely in this Florida summer climate.
I still intend to install a mini-split at some point - maybe this winter.
Once I get her climate controlled it will be a game changer.
I already have a stereo (two of them actually), a mini-fridge, and plenty of lighting. And it's a 2 car garage so plenty of room.
I have an area next to the garage on part of my circular drive to work on my cycles. I have 3 oscillating fans set up plus a metal roof to work under. It serves it's purpose for now but certainly not ideal.