The Other Shoe

As I walked to the Metro station this morning, I was listening to music on my little pod of music joy. I noticed about halfway to the station that the headphones weren't plugged in all the way. I plugged them in and the music soared! I completely failed to notice how tinny and bad it had sounded. It was only in the contrast that I realized.
Eventually, I got off the bus and headed to the office. Almost in the door, I realized that I hadn't taken the little headphone earbuds out of my ears, even though the music had stopped playing twenty minutees prior. I took them out, and felt better. Those things are uncomfortable! I could hear!
How many other things are like this in my life? How many half plugged-in headphones or unremoved earbuds do I have that I don't even know about? How many stoppers could I pull? How many things could I be seeing more clearly if I'd just remember to remove my sunglasses? How much better could I feel than I feel, if I could just find the switch?
Why is it that all of these thoughts happen during my commute? Do I stop thinking during the rest of the day?