I have a box I made that is on wheels, it is also my work bench but allows me to get machines out of the wagon and wheel them into the house, I can then take the legs on or off while it sits on top.
I also have draws in it for tools and parts etc, the other end has a flap that lifts up and locks into place creating a bigger work bench. Inside that end is where I keep power tools etc.

You see I do not have a shed, all my messy stuff is done outside (weather permitting) on this box the rest is done inside in my office that I have converted into a type of workshop but not practical for the painting, sanding and general timber work.

So this box is basically my workshop, trolley, storage everything!

But the saw horses are generally the best idea for quick temporary use.

Cheers: Brettski... :)