Next is a product I have put up here before and no I dont own stock in it.
But I cant say enough good about the miter gauge I bought.
It is unbelievably accurate and repeatable.
Mine is the HD 1000 that allows me to cut any angle into the fractions of a degree.
This is how I cut my angle gauge blocks to set up the tilt on the saw also.
The last time I did this was to cut 12 degree angles to make a wood container with 15 sides.
They are made by a company called INCRA here in Texas.
http://www.incra.com/miter_gauges.html