So I was thinking about how long it takes to load Rasbian alone vs an image file with everything on it. I'd like to have a 'universal' image that I put on every RPi I get, just to know that some of the basics are on it. Since I'm new, I don't know what they are.
Which things would you install onto every RPi, just in case you need it and keeping in mind the space req's.

Thanks
Josh
PS: I'm mostly using Model 3 B+, and that might be useful to the gurus out there.