How can I shorten my front teeth without an expensive or harmful procedure? (Photo)

My two front teeth are a fair amount longer than the rest of my teeth and I would like to make them not so prominently long. If they could be the same length as my canines, that would be really nice. Ideally all of my teeth would be somewhat uniform in length, but I don't know if that is possible. I can't afford braces or Invisalign, but I have heard that teeth filing and shaping and recontouring is a good option that can be fairly inexpensive. What should I do?