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Update [June 2014]: these tips are really old and outdated, only these tips remain relevant: 1, 2, 4, 5, 6, 7, 8, 10, 11, 14, 15, 17
#3. default AA is fine
#9. use face smoothness when there are broken lines on smooth surface
#12. Base thickness will be affected based on type of blend mode.
#13. Round cap extend the tip of the line 1/2 a circle
#16. crease is calculated by the angle between faces, the parameter is called Crease Angle
#18. R&V finds turning point of concave to convex