I am going to began this plethora of peeves with a very simple and straight forward idea: necklaces should not be worn with turtlenecks. I am referring to The Dangler - The charm of a necklace hanging out and over a turtleneck, while the chain of said necklace remains hidden beneath. It is always an intentional look, never accidental, as a necklace would never naturally have the capability to creep out and over the turtleneck encircling ones neck.
These two items are in constant battle for the territory which they both attempt to claim. One snuggly hugging the neck, the other awkwardly dangling over in hopes of adding a bit of flair. It never comes off as a graceful partnership.
You might think that a person would realize that these two items should never be worn in tandem, as the name of each seems to indicate that it is an item to be worn about the neck. One piece of decor is probably enough for that relatively small section of the anatomy.
If there is anyone questioning if this rule applies to the mock-turtleneck as well, the answer is unequivocally yes. In fact, I believe that the mock-turtleneck could be a post in and of itself.