The key to the budgeting is compromise. The bride will usually prefer all the best accessories and dresses where as the groom will be more financially conscious of the whole process. So, they need to meet somewhere in between to accomplish what they both want. A good rule of thumb is to comprise on quantity not quality. The quality of the wedding is what will be remembered by all. It is very possible to have a beautiful classy wedding on a tight budget, just be careful of how many guests are inviting. Having a budgeting sheet is helpful, so you may want to divide the sheet in categories such as the ones below.
You should be able to document your income, expenses, and (hopefully) savings every month. If your income minus expenses is a positive number, you can relax a little. You still may want to work on your budget so you can save more for an emergency or retirement. If that number comes out negative, you could be in big trouble. Spending more money than you make means you must rely on credit. In turn, this means you are setting yourself up for more trouble because those credit card payments will get higher every month.