You work in finance though, right? How difficult can it be?
Just look at your bank statement, your credit card statement, and keep track of everything you buy via receipts. As long as I'm not completely obliterated at a bar I can usually keep track of what I spend on a daily basis without those statements. Then once you have them entered, just average them out and sort each expenditure in categories. You can garner a pretty good idea of how much waste you're creating.

that's pretty much all it is.
A gay spic!
You're starting to fit in round here, Phillies Phuckface.