Living in the Bay Area, commute traffic can be a real pain. To try and dial in an ideal time to leave for/from work, I created an automated commute time tracker to gather data on when traffic starts to disperse. My phones automatically records the start/stop time and location of my commute when I connect to the Bluetooth in my car. This data is sent to a Google spreadsheet where the raw data is processed and flagged with additional information like direction, shift, and day of the week before being plotted.
Additional content will be added to this post at a later date.