Were you the woman behind me at the post office yesterday? The one who was huffing and sighing and displeased? The one who kept eyeing her watch and tap-tap-tapping her feet? The one whose displeasure I could feel even with my back to her and three feet of space between us? Was that you? Well, it’s been me before. I’ve been busy and rushing and trying to check things off my To Do list. I’ve felt like …