Clean Up After Yourself
This is a simple, if not obvious, life lesson. Yet it is extremely powerful, and clearly, not everyone has learned this lesson.
End your work day with a clean desk. End your meals with a clean kitchen. Put your clean laundry away. Answer your emails, pay your bills.
Keep your life clean. It may be a subtle difference, yet it is incredibly potent, the impact of a clean and uncluttered life can be, both physically and mentally.
Make a habit of cleaning up after yourself.