Rare is the craftsperson who couldn't use just a little more workspace. Maybe not more square footage (though I'd certainly take some), but perhaps more work surfaces to spread out projects, or some more storage to keep track of all the bits and pieces that come along with any technique.
Building this custom tool cabinet will certainly help. It adds a lot of vertical storage and organization for tools and parts, plus it's built into an old handtruck or wheel and axle combo. So you can nix your current bins and put your tools in here, build another worksurface in its place, then wheel your tools around in between to work on things with ease. Plus, it's built with standard and easy-to-find materials like "3/4" and 1/2" thick plywood, 1/4" thick MDF, ... and common hardware." Love it.
I like the use of the "one good face" plywood; it keeps the outside looking sharp, while the inside has more a pronounced "shop grade" flat sawn softwood look, which keeps everything nice and affordable.
Get the full how-to from the Lee Valley newsletter: Build a Rolling Tool Tote