Your last level of suppliers are purely “non-essential.” Think office and cleaning supplies, training & education, non-essential travel, etc. These expenses can be stretched the furthest. They are also likely the smallest items on your income statement, but in aggregate, they can help buy time. These are suppliers you use that are not critical to your customer. Think of it this way: if you make ice cream, the quality of the milk is important, but if you change carton or packing tape suppliers, the customer may not notice.