Last week a friend gave me a valuable lesson on how to think of a resignation letter. She told me she was blocked when she sat down to write a resignation letter that would declare her intention of leaving, give the required notice, yet also assure that she didn’t burn any bridges on the way out. Some advice from her sister saved the day. Think of it as writing a thank you note, her sister suggested. The moment my friend adopted that mindset, the words began to flow. She thanked her boss for all that she learned while at the same time explaining it was time to move on.