Cheap 12V DC bench top power supply

My work bench is 2" square tube with 5 legs It measures 3'x10' I made it to fit my tool box underneath. The top is 10' long 4'x10' 1/16" steel sheet. This is bent 90° down 2" across the front , and 90° up 10" across the back as a backsplash. I used 1" square tube to weld up 2 permanent shelves 10' long attached to the work bench for my books, and other supplies. The shelf tops are 1/8" masonite screwed down. I figured if I was gonna make one, it was gonna be big !!! and out of welded steel tube!!!

My pops workbench was 2x4s and plywood. Granted it was better than nothing when I was 15 and starting out working on cars, but I always hated that thing. He is used to doing everything with nails, or screws and bolts. No welder in his vernacular. Which brings up a funny sidebar. I'm talking to pops on the phone one day as he lives in another state. I'm telling him I am building a workbench for my new shop that's 3'x10'. He says what the hell do you want to make it that size for?? Eveybody knows plywood comes in 4x8 sheets. My reply was who said I was making this thing out of plywood and 2x4s lol!!!

I also installed some 2&1/2" tubing in 3 locations on the work bench. You can see the middle one in the picture between my welding rig and my tool box, however theres 2 more, one on either end. These are for my bench vise, and bench grinder. I then made mounts like a reciever hitch out of 2" tubing for my bench vise and my bench grinder. This way I can put either one of these tools in one of three spots on the work bench to use them. Or just remove them altogether to get them out of the way.