Natural Light. Natural light is best, so any windows that offer illumination to the space should be put to good use. If you have little sunlight in your shop, locate your workbench so that its work surface gets whatever there is. Even the best eyesight is made better by good light, so the close work to be done on a benchtop benefits from the natural light.
The second corner of the triangle is in the center of the room and, in our case, is where the workbench is located. Following work progress in sequence, the workbench is typically the second workstation where medium-duty work is done after heavier preparatory or wood-milling steps are finished. The workbench is where work is typically done using hand tools or smaller power tools such as hand drills, routers and joinery tools.
As the comic George Carlin might say, a shop is mostly just “a place to put your stuff.” The physical aspect of a shop is indeed simply a space of some kind — a garage, a barn, a teepee — that keeps the rain, rust, and robbers away and houses a collection of implements needed to saw, plane, slice, sand, and pound raw wood into useful objects. But just like the difference between a house and a home, what transforms a building full of tools into a comfortable workshop goes beyond the mere physical aspect.