We mix ours with equal parts Dawn and water to create a concentrate that measures easily. Using one part each of water, Dawn, and Glass Gleam 3 creates a concentrate that makes 3 gallons of cleaning solution per ounce of soap. Our poly dispenser bottles deliver one fluid ounce accurately, and our buckets have a three gallon fill line. Precise measurement, and no waste. Dawn leaves less residue than Simple Green in my opinion.