In my 18x24 shop I cut setup time by standardizing a cart: left drawer holds 0.030/0.035 tips, middle tray has two 6 in C-clamps and a dedicated ground lug, and the top has a steel plate with a scribed 1–2-3 block square. Roll it in, park, then follow the same three steps — clean, clamp, test tack — and I’ll share the cut list and label file if you want the exact dimensions or have a better sequence.
In my 18x24, I added a sliding copper backer plate under the top so when I run your ‘clean, clamp, test tack’ routine I can tack thin tabs without blowing through; it hides under the scribed 1–2–3 block square and slides out by a finger hole. Only caveat: it soaks heat quick, so I park it in a little angle bracket between runs.
I drilled and press-fit two 5/16 in dowel pins into the top spaced to match my “1–2–3 block,” so I can drop the block on as a quick fence and your scribed square stays dead repeatable. Small caveat: I ditched the two 6 in C-clamps for 4 in F-clamps so the “clean, clamp, test tack” step is faster one-handed.