This point can't be made strongly enough. People are constantly questioning just how much influence a president really has on an individual's daily life. Certainly, the answer to that question depends very much on the person, but in general, a president has numerous opportunities to make decisions that may greatly affect you.
Not included here, but one of my key points in an election cycle, is that a president also gets to nominate supreme court justices. Supreme court decisions have the potential to shape your life for decades. It does matter who the president is. It should matter to you.