Let it go. Always good advice. Everyday I find things I need to let go on - hurt feelings, resentments, pains, sadness. Why do we want to hang on, when it is just so easy to open our hands - open our minds - and just let it go.
Great parenting advice given to me by my Mom while watching me fight a battle with a 3 year old that was not worth fighting but I had to keep fighting it because I picked it. :) Now I choose my battles carefully.