Some parking meters in Laguna Beach have been repurposed in order to avoid panhandlers. Making them colorful little pieces of art scattered around the artsy town, each meter has a plaque explaining that inserted coins will be collected and used toward efforts to aid the homeless. Assuming that these efforts have been effective, I believe this is a good controlled way (regardless of how minimal it may be) to help those in need with your loose change. Although most of us need coins for the actual parking meters since there are no change machines set up, maybe we could implement something similar in the future here in Lebanon.