Switching from standard size bottles of shampoo, conditioner and body wash—not 3-in-1 in a single bottle, but three separate bottles—to large bottles with pumps required me to recalibrate the amounts of each. One pump, one-and-a-half pumps, two pumps. Enough or too much. I might be overthinking my shower if I'm trying to determine the most effecient amount of shampoo, conditioner and body wash and how to get each into my hand.