Yesterday I wrote about all the good in the world. Today I went grocery shopping—and the universe clearly had homework for me. Between icy looks, clipped responses, and one very rude cart moment, I felt the irritation seeping in. But there were helpers too. A stranger who reached the groceries I couldn't. A man who truly listened. Here's what I learned about how to protect your peace, offer grace, and refuse to let a few cranky moments erase the beautiful ones. (Yes, there wa