I got tired of dragging in heavy milk gallons from grocery shopping, so I have started doing, at home, what we do while camping. That is, I mix a gallon of filtered water with dry milk powder and let it stand in the fridge overnight which greatly improves flavor. Then I add about a half-cup of cream and shake gently. You use only as much cream as it takes to make the milk taste and feel right; a po' folks version I was taught features blending vegetable oil into the milk powder so I adapted that for what we can afford now. (We use whole milk because the rest of our diet is so low-fat that we actually need the milkfat for vitamin absorption.)

~S~