The coloured glands and collars on Neutrik XLRs and jacks work very well and I use them a lot, too.
Talking of identifying who is using which mic via colour coding, I still have nightmares about mixing sound for the regional contributions on a BBC Children in Need in the mid 80s. There was a large L-shaped sofa on a studio set where the hosts could interview a variety of people throughout the night in front of a modest audience: members of the public bringing in buckets of money, company reps with donation cheques, passing celebs, local politicians, etc etc.
My only sound assistant was kept busy wrangling radio mics and swinging a fishpole outside most of the time, so I had to rely on the studio floor manager to fix wired lavalier mics on the sofa guests.
To give me a fighting chance of knowing who was talking on which mic, I fitted coloured foam windshields to the five wired lavalier mics (red, blue, green, yellow and black) which I could see on my colour preview monitor. My scheme worked fine for several of the studio chat inserts... Until the politicians turned up late in the evening.
Looking back, this was completely inevitable, of course, but I sadly hadn't predicted it...
The floor manager got the politicians on to the set, sat them down and clipped on their mics, I did a quick sound check and all seemed well.
However, while my attention was focused on an outside piece the politicians realised that their windshield colours didn't correspond with their party colours, so they swapped them all around. And the floor manager didn't notice either.
So the director cuts into the studio, the host does his link and questions the first politician wearing the red mic... who sounds very distant... And then i discover hes on the yellow channel... As the others start chiming in I'm desperately struggling to figure out who is on which fader, and so it sounds like I'm late with all the fades and it all sounds pretty terrible until I applied the only solution of pulling everything up at the same time and just accept it all being a bit more open and coloured (from the PA spill) than ideal!
I was definitely not a happy bunny after that one! They say never work with animals, kids, or politicians... And I've done all three and can vouch for the sage advice!