If you're tempted to cut in line or otherwise cheat a bit to get ahead at the beginning of the week, consider your traveler's karma. Why not spend those extra few minutes talking to someone interesting or offering somebody a hand? Things will go more smoothly for you, and you'll have more fun later. Like on wednesday and thursday. What goes around, comes around, and you could get surprisingly, touchingly generous treatment now. And you can move right along at your brisk pace! On friday and saturday, however, it's hard to get going. Never fear. Sunday kicks off a couple great travel days.