Might try experimenting with changing the reward. Instead of money, every 25 bottles means a tree is planeted or something. The 2cents a bottle isn't much of mo

Might try experimenting with changing the reward. Instead of money, every 25 bottles means a tree is planeted or something. The 2cents a bottle isn't much of motivation for regular people. Easy for me to suggest as I don't have to figure it out, but maybe something to consider.