Clean up your seating plan!
When is the last time you really looked at your seating plans to see if everything in it is correct?
How do you know if all the seats have price categories? How do you know there aren't price categories in the spaces between seats?
Also when you clean up your seating plan, you will learn to print out the plan so you can check there are the correct number of seats in each section.
Get your brooms out!