Well concentrating till the end of your day is important. I almost had a screw up yesterday. Friday night / Saturday morning. Get back to hub. Had a good night. Tired. Ready to start weekend. 630 a.m. Park my big box, do post trip. Legs, lines, pin. Like always. Still dark out. Luckily I always turn on tractor utility light and look out back window of tractor as I'm pulling away from trailer. What do I see? Light cord still plugged into trailer. What the heck. How in the hell did I forget to take light cord out. If I wouldn't have looked and been to lazy to turn and look out the rear window, that light cord most likely would have come thru the rear tractor window. That would have been a bad way to start my weekend. I thanked God for looking out for me and for following my routine. That would have sucked. So pay attention till all is parked and you hit that punch out button.