When it comes to paying your mortgage everyone knows you can save money on the interest by shelling out a little more and applying it to the principal. That means additional principal payments benefit you later on, right? You may also view one dollar today as the same dollar tomorrow. However, that’s not technically true. It depends on how much and why you spend it. If that seems a little confusing, let me break it down a bit more for you. That way you’ll know how much you really are or are not saving.