I like beer and know a lot of great people. I go to all of their parties. Years ago, I noticed that there were a ton of half full (optimist) cups everywhere. To circumvent this problem, (a big one if you don't like to see wasted beers) I started writing my name on my cup. I also brought my cup home at the end of the night for reuse. I was then prepared for the next party and really got into the habit of bring my cup with me. Then the photos started emerging and turning into the videos that I'm sharing with everyone who wants another "green avenue".
1. A Red Solo Cup
2. A Sharpie