Things that stress me out to plan but are disproportionately satisfying when they work out

Yeah, this is a very specific list.
  1. Packing the right ratio of apple to peanut butter in my lunch
    Same goes for hummus and veggies
  2. Making the right amount of coffee to fit in my travel mug
  3. Allotting an amount of time to a task
  4. Watching the crosswalk countdown and deciding if you can make the light
    Bonus points if make the light and red light camera doesn't go off