This month my friends voted for what I abstain from. It was a tie between giving up hot water (a truly brutal task!), right hand dominance, and all disposable products materials (think throw away bottles, napkins, plastic cups etc). I got a few suggestions such as giving up all things yellow. Not sure what the value, other than comedic of course, that would provide but it’d be funny. If I were truely hardcore I would drink SO much water that even my pee wasn’t yellow.