One very important lesson I got from my dad was to always clean your tools. In his shop where he kept his big rig, greasy and grimy as it was, no matter what the task was for the day, at the end of it, always clean the tools and put them away where they belong, neat and organized.
A huge contrast to the wildly messy rooms of my childhood friends who would go on to drive wildly messy cars, which felt oftentimes like you were just riding around in trash.
As a designer with lots happening at any given time, being clean and organized is how I get shit done.