Some Rules are Laws, and the greatest chart ever

I was researching examples of workplace-appropriate blue jeans, and came across this entry from Esquire's "The (New) Laws of Casual Style".  It has to be 112% true.

57. Unless you’re wearing a blazer, there’s no wrong time to roll up your sleeves. How high you choose to roll them says a lot about you.

P.S.:  I myself, always roll-up to exactly the elbow for two reasons, because I want to show off my impress arms, and because I was told that's how JFK always did it.