We have quite a bit of discretionary income, so have not felt the need to budget to the penny. Our mortgage is our only debt. We have good retirement savings and emergency savings plans. That said, every once in awhile we make a decision "go on a strict budget". In fact, beginning 9/1 we are beginning a one year budget with a goal to save a large sum of money during that period. We have our sights set on a three week vacation to Hawaii next summer, a good down payment on a new vehicle, and some landscaping work. It is going to take some discpline to get there, so budget here we come!