When I first heard about the international 100in1Day Festival from Bogota, Colombia, I knew this is something that Hamilton would be all over! After presenting to a group of Hamilton Sustainability Professionals, we agreed to take it on as a pilot in 2015. Since then, we have hosted more than 100 ideation to action workshops and have helped to support more than 550 volunteer-run interventions, engaging tens of thousands of residents. 100in1Day helps to de-risk the testing of new ideas, supports creative tactical urbanism, and encourages anyone and everyone to strive for positive change in their communities – how could I say no?!