I did the same as Quickstorm - farmers dressed in green, builders in blue, researchers in grey, parents in yellow, doctors in red and elders in white. Made it heaps easier to keep track of who was doing what (and what they should have been doing - lol). But wish I could change what the kids and nursing mothers were wearing, sometimes I pick up a female wearing yellow, drop her on a male and she runs away 'cos she's too young! So guess the clothes thing doesn't always work!!