Oops...looks like I did the quote thing wrong.
Anyway, the quizzes are what gets me more than the time spent prepping.
When I prep, I read through the directions and make notes about things that I know I won't remember or specifics. By making notes on paper, it helps me remember and then I write on that piece of paper after the shop. Sometimes it's the back side of my "working paper..." with shop ID, address, etc.
I do count the paper in my expenses, though, just as I count mileage.
The thing about prep is that when you do a certain shop a few times, prep is minimal. And many times schedulers will highlight any changes, which helps tremendously!
On the other hand....quizzes. Ugh. I hate quizzes so much that I probably miss out on hundreds of shops! I don't want to take the time to read through the materials and answer a quiz...when I'm going to read through the materials anyway (and take notes) to do the shop. I honestly have completed less than 10 quizzes in 10 years of shopping, leaving me with less work. I'm too busy to add quiz time (study and take) to my list of things to do. I rarely get bad reviews on shops; I do read and comprehend directions. I wish just shoppers who really mess up had to do quizzes. Recently, I was hanging out at my mom's house in the mountains, with nothing to do. I took 2 quizzes. I rarely, though, have "nothing to do...."