Like a lot have said above, the mirrors adjusted properly will eliminate the blind spots. Your mirrors should be set up to have a "panoramic" view of everything behind you.
http://www.caranddriver.com/features...id-blind-spots
You shouldn't see your own car in your side view mirrors. Cars on either side of you if they are further away should be in your center rear view. As they move closer to the left and right, when they "leave" the view of your center rear view they should transition straight to one of the side mirrors. As they are traveling in your side view mirrors view, when they start "leaving" that mirror they are now right beside you out of the corner of your eye. No blind spots.
If you insist on seeing a fraction of your car in your side views, you may want to invest in some aftermarket convex mirrors, but if you set up the panoramic rear view mirrors, you shouldn't have a problem.