Include all variable expenses now, car maintenance, electricity, heating, these can vary throughout the year you need to calculate them and come up with an average monthly amount. None essential expenses like eating out coffee at Starbucks, weekend getaways, extravagant vacations, fancy clothing, motorcycles, ATV's, if you use them, write them down, realize these are wants, not needs. Now total these all up, fixed expenses, variable expenses, and non_essential expenses,there you now have your total expenses.
There are many ways you can choose to obtain budgeting worksheets for yourself or for your household, and the best way is through the internet. Also, you have the option whether you like to purchase highly optimized worksheets that are designed and distributed by certain companies or you would like to simply get free worksheets. You must know that just because some worksheets are free does not mean they are not credible and reliable. In fact, if you do not really need the specialties of advanced and complicated budgeting, you don't have to buy worksheets at all. Then again, the decision is on you.