Reuse grey water for non-potable purposes
Grey water is water that has been used for hand washing, showering, rinsing vegetables, etc. (not toilet water). It can be used for things like toilet flushing and outdoor watering.
This does not currently meet code in Saskatchewan, but does in some other jurisdictions. Although you can’t currently plumb your home to use greywater, you can capture your sink or shower water, and take it outside to water plants, or pour it into your toilet for flushing. Also, check out the work CMHC is doing on grey water reuse.