My husband was the same way with making bottles. I swear it took him forever, especially during the night. I finally came up with a plan that saved us a lot of time. Every night before you go to bed, prepare the bottles with everything they need except the water. We would measure out about 3-4 bottles, adding the formula and salt. This way when the baby woke, all we had to do was add water and shake. Helps a lot, especially during the night when you’re half awake and stumbling around anyways.