Can anyone please simplify this?

I just received a deposit on a wedding in the mail.
A signed document and a check...

I DO have a file cabinet with folders for:
"wholesale orders", "reg cake orders" and "wedding orders" .....
BUT(how do I organize the wedding paperwork?) There's the contract, the signed agreement, the email correspondance, etc... so much paperwork. Is there a super organized way to do this?

Thank so much.

I put each brides paperwork and printed emails in a file folder and then in a box, filed by date.

I do the same thing as Leahs...Every cake that has a deposit has a file folder and is filed by date. If I have some written information that doesn't have a deposit to go with it yet, I put it in my paperwork holder that I do each week, and when the deposit comes in I move it to the files that have been booked.