Tommy Kleyn was tired of seeing litter along his ride to work everyday. For the most part his route was nice, but there was a particular 100-meter stretch along the bank of the Schie in Netherlands that was covered in plastic bottles and trash. One day he decided he was fed up with it, so the next morning he brought a trash bag with him to work. Kleyn spent an extra half hour filling the bag with trash that he picked up off the bank.
Excellent.