Wedding Budget
Here is an example of how Miss Butterfly of WeddingBee.com is able to keep track of all her expenses. She shares a picture of the excel file she uses and it contains all the different, wedding related ,expenses on her list (Copy it and add or remove things that do not pertain to your event).
For Quinceaneras and their moms that decide to use this article as an expense tracker, you, the quinceanera, can probably ask for assistance from one of your school teachers and they can help you set up the excel file so that it can perform all the nice functions and all you have to do is insert the correct numbers.
How long did it take you to write this? This is Absolutely fantastic.