One of the things I still remember picking up from RRE was to remember that you can index from either end. Imagine that you have a knob with 10 positions and ne

One of the things I still remember picking up from RRE was to remember that you can index from either end. Imagine that you have a knob with 10 positions and need to adjust it by feel to the 8th. Don't start at 1 and count up 7, go all the way to the end and count back down 3 instead. It was an unusual and always interesting read.