Instead of letting our shower go down the drain, we could collect the water through the use of buckets. The water collected by the buckets can then be used to flush the toilet. Instead of using clean and potable water, we could use our shower water to flush the toilet. This process is essentially reusing shower water to flush toilets. This action is very effective because in a year, per person, the thousands of gallons of water that is supposed to go down the drain is actually reused to flush; saving water. 

 

How it saves money: Instead of flushing, one is using used water from showers. Making the water bill go down.