Here is one that just came into my mind (I don't find it easy to remember such things "on command"):
Newcomers to LF often find it difficult to apply the correct amount of tilt and swing with the front standard. It is usually much easier to determine tilt and swing with the back standard, because most camera models provide at least one point on the ground glass that stays in focus while applying movements. Unfortunately, back tilts and swings do change perspective and usually only monorail cameras do have protractors that allow an easy transfer of the movement angel from one standard to the other. Apart from that, almost all view camera protractors have insufficient scales. The simple and fast solution is to re-level the back standard with the tripod head and apply a little correction shift afterwards.