ok now i figured one to check the internet for instuctions, one to measure with a slide rule, one with an engineering degree to tell how much force to exert on the bulb while screwing it in and the proper angle in which to screw it in, one with a knowledge of electronics to make sure the current is correct for that type of light bulb, and lastly one to call the handyman to come and change it for them!
One to make up a 3-D rendered model of the light bulb and its socket. One to gather all the tools nessessary for makeing the light bulb and one to design the ladder.