if you are quick with your work, the easiest way is to number each panel you are applying the wax to.
eg, start with the right rear fender, move to the right rear and than the right front doors. once done get onto the right front fender and move to the left of the car starting with the left front panel, left front door, left rear door and finally left rear fender.
this should take you around 15-20 mins, which is more than enough time for the wax to haze and you can just start buffing away the wax starting from the right rear fender followed by the RRD, RFD, RFF, LFF, LFD, LRD and LRF.
next up comes the roof, hood and trunk. wax each part, eg start with the hood, followed by roof and finally trunk. and than just buff away in the same order. hood, roof, trunk.