Finding arrowheads

When I was a kid, my siblings and I enjoyed finding projectile points left by the Native Americans.  We generally referred to them as arrowheads or Indian arrowheads, though some might have been made for tipping much larger projectiles than arrows.  Sometimes they could be found in a cultivated field, sometimes even in the crawl space of the house, but most it seemed we found where the grass didn't grow under the oaks, and successive rains would erode a layer of soil and expose them.
I liked to pride myself on finding treasure, but I think my siblings were actually better at spotting them.  I did find one that I especially like.  I was waiting for the school bus (and that right there was highly unusual--I usually was flying out the door in disorganized chaos as the driver tooted his horn) and looked down.  There on the ground was a wonderful projectile point with only a little chip on one side.  I like to look at it and wonder about the individual who made it and what his life was like.  We consider that a primitive culture, and yet it took a practiced skill to make the point and use it successfully.
The one on the right is the one I found at the school bus stop.

 

Do you have a collection of projectile points?