This is a well built bag that does a good job of consolidating tools. It opens up very wide and is surprisingly compact when closed. I use mine doing HVAC installation to avoid schlepping power tools one at a time. Holds a circular saw, reciprocating saw, angle grinder, hammer drill and the associated bits/discs/blades/batteries/grips. Also have a two foot level and 18" bar folder in there and it still zips closed with zero issues.
This super-strong and simple-to-build workbench is may be the project you've been looking for a long time. You have to select some free workbench plans to create yourself a working table in your shed that after you can use it when you are working on your projects and maybe it can provide you some extra storage, depends upon which plan you are choosing to DIY.