Tip _ Allow for Savings _ It is always a great idea to plan to save a certain amount of money each month. This can be the beginning of an emergency fund so when unexpected expenses come your way you don't have to reach for your credit card. This is an important step to getting and keeping yourself out of debt.
I'm a fan of MS Excel _ my apologies for those who have issues with Microsoft _ because I find its powerful calculations are easy to manipulate to help me better understand my finances. It doesn't really matter though which spreadsheeting package you use so long as you are able to calculate your amounts effectively. There are commercial budgeting worksheets available but if you want to create your own its a simple process.