I just fly by the seat of my pants and measure them out right before I need them. Surely I can't be the only one!
You are not Amanda. I do the same thing.
I just like to have things ready to go, so I keep a set of ziplock bags with FWH, 60, 45, 30, etc. written on them. I preweigh (sometimes the day before) the hops into the appropriate bags.
Did I mention I have CDO? It's like OCD, but the letters are in the right order.