I have the junior version of that Craig has. The drivers side has shelving all in 16" spacing so buckets fit as well as tool boxes.
Trowels hand around the lip of a 5 gallon bucket
I have 2 5G buckets of "commonly used tile tools"
The RA grinder has its own
orange tool box
The rotozip has its own orange tool box
Spacers go in a
small parts organizer
Screws go in a small parts organizer
Electrical parts go in a small parts organizer
No soft sides bags
All the other tools like drills and saws are all in their factory hard plastic cases with the tool name written on the ends in white paint pen so they can be differentiated easily on the shelf.
Straight edges and T-squares are slid into the ceiling of my trailer.