I've discovered that there is a big difference between flying and traveling by car. When flying I work hard to take only what I need. It's expensive and exhausting to try to drag everything you think you need through an airport. A road trip is completely different. We can pack the car full of things that we may or may not need along the way. My lesson: boundaries push you to make smarter decisions. We have books, food, water, trail mix, boxes of all manner of shoes and hiking stuff. Layers of clothes for Canada . And now I wonder why I packed 8 t-shirts?