Here in the pacific northwest we have a chain of stores called Fred Meyer. (We call it Freddies around this leg of the forest.) Freddie's advertising slogan is: What's on your list today?
Northwesterners catch the phrase every time they see a huge Freddie's truck on the freeway. With most people it probably causes a thought of 'what do I need at the store today.' However for me, it serves as a wake-up call to ask me what "list" of thoughts am I focusing on right now.
In other words it wakes me up to become consciously aware of the quality of my thought at that moment. If you think about it, you can ascribe a value to a list of thoughts running in your mind at any given moment. So imagine you and a co-worker you carpool with are in traffic on your way home from work and you're driving in the HOV (High Occupancy Vehicle) lane when a guy driving alone slips in front of you, illegally enjoying a faster ride home, and you start a list of thoughts that goes something like this: