Standard story; I've tried this so many times and can't seem to manage anything higher than 1851 out of 1900 dollars. I do as many chains as I can, keep the zepplin orders for last to get an extra chain, all the regular stuff...any tips?

Also, I was wondering if anyone know for sure about the game mechanics. Are there certain customers that must stand in a certain spot, so if you leave one pile of dollars on the counter and the next person usually goes there, they will never appear until you pick up that one pile? Just checking.

It's level 19 that's the big problem. I Got expert on 20 and now I don't know if I should move forward because I don't know if you can go back to a completed location to try to get expert. Anyone know?