Got the last job of the week cycling right now, so I figured I'd type out a few things I wish someone had told me fifteen years ago. Friday afternoon parts are where most of my scrap has come from. You're tired, you want to go home, and that's exactly when you skip the things that matter. So now I force myself to slow down on the last setup of the day, even when the machine is the only thing standing between me and a beer. First habit: dry run the last program of the day even if you've run it twenty times. especally if you've run it twenty times. That's when muscle memory betrays you and you grab the 3/8 cutter instead of the 1/2. Second, check your coolant level before you walk out. A low sump on a long weekend is how you come back Monday to a baked-on mess and a sour shop. Third, if the part is finishing on Monday, leave it in soft jaws or the fixture with a note on it. Future you is a diffrent person and does not remember what you were thinking.
One more thing about that last cut. I used to babysit the final op, standing there watching chips fly, wasting half an hour. Now I set a conservative feed on the finish pass, hit cycle start, and go clean out my lunchbox and check my email. The part doesn't care if I'm watching. It comes out fine and I'm not rushing the deburr. Anyway, that's what works for me after a lot of scrapped aluminum. The last part of the week deserves the same respect as the first one.