This is My Idiom

Put yourself in someone's shoes or put yourself in my shoes.

• Put yourself in my shoes: try to imagine yourself in my situation in order to understand how I feel.
  

I attempt to answer two of the idioms:

• Nose to the grindstone: to pay attention on doing something and to not stop working until the job is completed.
  
• Rule of thumb: to a simple, easily understood rule that tells us how to act in a given situation.