I put my 120 outlets about 4 feet apart, 4 feet high, which makes it about every third stud, on two circuits. The two circuits alternate, and I used black outlets for one circuit, and gray outlets for the other circuit. These alternate every other outlet. Also, have a gfci outlet at the first outlet from the breaker, on each of these circuits, to protect all the other outlets on that circuit. Then have fluourescent lights, 4 on each lighting circuit, with seperate switches. Another circuit for garage door opener, ceiling light, and 3 ceiling outlets. One more circuit with an outlet on each side of the garage door up near the drums for a future opener (LM3800). The two 220 circuits for a lathe and a mill. 120 circuit for air conditioner. Last circuit for 220 welder, 50amp.
Billy