When working on projects I use a tool tray to carry tools from the tool box.
One problem I always find is where to put it. Many times the only place for it is on the floor, then I am always bending to get tools down on the floor. While I was working on the garden tractor I found a solution. Years ago you would find these stools in sporting good of many big stores.
I removed the canvas seat from the stool then using flat bar stock made mounts for the tool tray
The legs mount this way.
Now it stands up like this. It is not real high about the height of a chair seat.
When done using it all will fold up & store in the tray.