I once read that listing all your expenses is a good start to saving money since it would allow you to analyze everything and prioritize what is a need and what is a want.
That is correct, pencil pushing is the best way to manage our finances. As what financial guru is always telling, Income - Savings=Expenses. Meaning, save first before you spend. That's a great formula I think. Once we do this diligently then for sure we will end up with a very good savings.