I have found the following questions to be useful as a way of checking myself. I ask one question a day and come back to each periodically to check on how I'm doing. They are a kind of pressure cuff for my moral and spiritual development.
Do you live your life consistently with your values and principles?
If your children/best friends could know you fully, would they be pleased with what they found?
What have you done today that adds to the common good?
Would the world be a better place if others acted as you do?
What place do people play in your life and what place do things play?
How important is success and what success is important?
When people let you down, how do you respond to the disappointment?
When you hurt another, what do you do to repair the damage?
Do you put your hands where your heart is?
Does your spending reflect your values?