Little Free Libraries: a place to take or leave a book; search Little Free Library Ottawa on Google for a list of LFL that are registered.
Bottles & Cans
The Debra Dynes Family House is a community resource centre in a low-income social housing area, always in need of clothing (and food stuffs, services and various pieces of equipment). See their list of ongoing needs.
Dress for Success is a place to donate your lightly used, preloved clothes to someone who will be given the opportunity of leaving a good impression when they go to their next interview.
Crayola’s ColorCycle is an an initiative for students in K-12 schools across parts of Canada that collects and re-purposes used Crayola markers.