cheers red, think it makes sense not to apply them all at the same time as you say, maybe depends on the type of wax, would like to apply them all in same day as to get it done and out the way but the other way as you say to do it after 3 washes in a row, I wonder what would be more effective out of the 2 ways.
I guess some people just wax on - buff off then straight away do it 2 more times but as you say that may be a pointless procedure.
I actually find it easier to wax my whole car compared to doing the wheels,,, maybe its all the bending down at my age im finding a chore lol