Does you spouse or partner have an incredibly annoying habit? My H constantly bites his nails or fingers. I do not know what the heck he is doing! I only know his fingers are constantly in his mouth and he is gnawing away. Although we are soon to celebrate our 30th wedding anniversary, it gas affected our relationship. I often go to another room at night to avoid his gnawing. When we stay in the same room I constantly tell him to stop.
He has a PhD and is a high up college administrator. I do not believe he does this in most of his meetings. So I guess he can control it, but doesn’t at home. ( Although he recently attended a certificate program for college administrators. There was a picture of him on line of him biting his nails/fingers. This was a Harvard program which was why there were on line pictures.)
Spouse uses up a critical ingredient in the pantry and doesn’t say anything. Halfway into prepping to cook/bake , I discover there aren’t any: eggs or vanilla or _.
I also seem to be the only person in the household who is aware that toilet paper has to be bought. It doesn’t just magically replenish itself.
He leaves the kitchen cabinet doors open. Funny enough, his brother in law told me dh’s sister does the same thing! Their mother certainly didn’t.
He hogs the remote.
Toilet seat position
Eating directly from group food without placing on a plate for self
Not enough handwashing
Constantly clicking the battery case door of the remote open - then snapping it shut, open - then snapping it shut. Oh, I freak and grab it the way cartoon frogs catch flies, no words spoken.
Mine used to constantly bite his nails and fingers too but he has since stop but he doesn’t know why.
@BunsenBurner - Are we married to the same person? 
DrGooglr-- I wish he could explain why, when and especially what for! And then explain why and how he stopped.
I don’t hear his gnawing, perhaps my hearing is bad, so I didn’t notice it when he was doing it or not doing it, only he noticed that he stopped chewing.
Numerous years ago I noticed that H would leave the cap off his toothpaste tube every day. I used a different toothpaste, but I would have to put his back together if I were trying to tidy up. One day I decided that if he didn’t care if his toothpaste had a cap, then neither did I, so I threw the cap in the garbage. After that, I just threw his paste in his drawer, sans cap. He didn’t seem to care and I had one less annoyance.
That said, H can’t ever seem to learn my work schedule, so calls me at any moment with ridiculous questions, and he puts anything under the sun into the dishwasher, so I have to screen before he turns it on.
Ice chewing is almost grounds for divorce for me - can’t handle it!!!
Food noises are a big annoyance for me.
Starting a task and not finishing it. Like, all day long. I can see his path of task disorganization through the house!
Talking loud on the phone. Here’s a biggie: insists on talking to people on his cell phone by putting them on speaker - so then he talks even LOUDER!!!
My DH does some of this and it drove me crazy. Then he nearly died. 14 days in ICU over Christmas a few years back. I don’t notice it any more. I’m just so happy to have my best friend still in my life.
Don’t mean to kill the thread, but please vent here instead if griping at your spouse.
Oh, not to be snappy, @dragonmom, but I forgot one pet peeve: My husband keeps breathing. Drives me crazy.
^^^ Suggestion noted dragonmom. Glad your husband recovered.
Of course, I’m sure my H would have a couple things to throw my way too!!!
Waiting, my new problem is my DH doesn’t exhale. He has (unrelated to other issue) serious sleep apnea. Weight control hasn’t solved it and he does not appreciate me nudging him to get him to breathe.
Yes, I am familiar with that. It is an inherited condition in my husband’s family, and I believe I’ve counted up to about 24 seconds before I couldn’t take it anymore and jabbed him (depending on my mood), or shook him. To my dismay, my youngest also has this condition, though it seems right now to be less severe.
And for the record, Dragonmom, I am glad you have your best friend with you.
I ask a question, Mr. says yes, and then it turns out he did not even hear the question! He complains that I leave crap in the car (crap being my umbrellas, gas receipts, pens, etc.). 
in the grand scheme of things, these are so minor we just laugh when one mentions the habit…