Today I followed these lines around and around the track until I had followed them for 4 miles.
When I reached the 4 mile mark, part of me wanted to keep going, but I reigned myself in and slowed to a walk. Tomorrow is another day to run between the lines.
Note: To keep myself entertained, I played the entire Bird and the Bee album, "Interpreting the Masters, Vol 1: A Tribute to Daryl Hall and John Oats" on my iPod. Should you have the means (and a mutual nostalgia for Maneater), I highly suggest that you pick it up.