31 Days of Pure Horror (Days 9-11--Friday the 13th Marathon)

I really haven't watched the original Friday the 13th "triology" in years.  It's been on screens in houses that I've attended Halloween parties pretty ofter, so I've seen a scene here and a scene there, but it has been a long while since I really watched them.  So, for the next three days, I'll be working my way through Friday the 13th parts 1 through 3.  Of course, I'm going to watch part 3 in 3d just as I did when it was orginally released.  I expect to get the same headache, also.  The Friday the 13th films aren't great, but they are so influential that I feel the need to refresh my memory of what they did well.