I eventually decided to make new variables/units for each hourly rate. The reason I did this is that we want to track both the number of hours spent, and the rate we're charging clients.
It might make sense to add the price to logger entries, but I'm not sure if that's the best idea design wise. If this becomes more of an issue with other people, perhaps someone will scratch that itch. For now, I'm going to live with it the way it is.
Thanks for your thoughts, Malte!
