You know you have them. That annoying itch you can't get to go away, even with the pricey anti-fungal cream you put on it, it just keeps coming back and back again and again. Reading books, I tend to find the same kind of irritations. Writing books, I notice certain things I do that make me want to yank my hair out a strand at a time.
One of my bigger pet peeves when reading is repetition or redundancy. Yeah, I mentioned them both to prove a point. I hate being hit over the head again and again with explanations of things I've already been told about. GET ON WITH THE STORY already. I'm not an idiot! I can figure it out, I promise!
I have issues too, though, in my own writing. I think as writers, we all do. You know, writing passive verbs more than you intend to. Making a hand do something you meant your character to do. Have some eyes dance across the floor (creepy image). Have the world "smile" a million times in your manuscript. It happens. One of mine is getting TOO close to my MC that the supporting cast are more like shadows instead of real people.
But the good thing is, eventually that fungal cream starts to work. The more you apply it, the better those breakouts get. The less they start appearing. Just like staying on top of reading what's out there and seeing what works and what drives you crazy (and obviously does not work), and continuing your own writing, improving your skill, and consciously realizing the little pet peeve mistakes you make. Correcting those mistakes to the point you don't have to remind yourself anymore. It's all about mastering the art of illusion in literary form. One itch at a time.