A circular saw bevels only to 45°. For a shallower, longer slope, cut the complementary angle across the board first, then make a square cut off that new face — the two cuts combine into the angle the saw can't reach.
Half of 6-11/16 is 3-11/32: halve the whole number, keep the numerator, double the denominator. Odd whole numbers fold their leftover half into the fraction by adding numerator and denominator together.
Brad nails have a chisel-shaped tip, and when the tip hits something hard it deflects in the direction the chisel faces. Orient the nailer so a deflected nail skips along the panel instead of blowing out the show face.
Calibrate two marks on fence tape — one at the blade's cut line, one at an arbitrary offset — and from then on you align your measurement mark to the offset mark instead of squinting at the blade. Made for molding profiles where you can't sight the blade to a pencil line.
Treads add their thickness to every step — which cancels out everywhere except the bottom rise. Cut the tread thickness off the bottom of the stringer and every step lands equal.