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.
Consider putting yourself back on cash. If you think you shop impulsively because it is so easy to use plastic, try to give yourself a cash allowance every week. You may go over the allowance, but you will have to go to some effort to replenish it. This can be a great way to get a handle on spending.