I modified DuxaUI to have 1 ear Slot and 1 Bracer Slot where the Range/Ammo were on the main hotbar. I hardly ever swap out my range/ammo so it was a waste of space. I was originally thinking of adding more, but since Bracer of Hidden and Gob earring are the 2 things I swap in/out the most it has suited me well so far.
I guess it could differ depending on the class, but I'd say Ear/Bracer seems pretty common to swap for junk buffs among all classes so that's how I voted.
Here's what mine looks like on my EC mule with Tar Goo Strand/Orc Fang earring
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