A couple for me.
“Dinning room”, WTF? Honestly. One dines in the dining room.
Palate/Palette/Pallet. HOLY SHIT. If I read another newspaper story/food blog/restaurant review/advertisement/whatever that tries to “tempt my pallet/palette” I’m going to scream.
Maybe it’s a room where you go to scream and stamp your feet for distressing purposes or something.
No problem understanding each word. Often just spell them wrong, making it look like I mean one, when I mean the other. I bet that’s really what you are seeing.
Weary instead of wary. The first one rhymes with beer E and means tired. The second one rhymes with bare E and means being cautious, as in the related words aware or beware.
Also, it’s predictive text that fucks up words, not autocorrect. Autocorrect is useful, predictive is the one you have to watch.
At an amusement park where I once worked, there was a diving horse. On rainy days it was dangerous for him to dive, so a sign was put up that said Rex is “resting” today. That always bugged me.
Unless they were trying to imply that Rex was drunk.
But yes, people who don’t understand what quotation marks mean… I “dislike” them.
Better than admitting he’s dead. He’s probably nailed to his stall.
Pedal vs petal and breathe vs breath often get to me, if only because they’re less common mistakes (as they’re less commonly used than say, their/they’re/there). For some reason the breathe/breath one just makes me irrationally mad. I think it’s because breath and breathe are pronounced so differently, and the e is NOT silent, that I can’t understand how someone could type. “I needed to breath and calm down.” If you think that’s how you spell breathe, then how do you even rationalize how the word breath is spelled? What do they think breath would be spelled like in that case? Breat?
In that case, maybe I need one for when I am faced with terrible grammar errors. 
:smack: That should have said “for destressing purposes”; autocorrect "fixed’ it for me.
Although if you have a distressing purpose for screaming and stamping your feet, hey, that’s your business.
Oh, I have another one that I’ve seen people on this forum do: rational instead of rationale.
Ones I’ve seen professional writers make:
“Elude” for “Allude”
“Respectful(ly)” for “Respective(ly)”
“Illicit” for “Elicit”
Misuse of the verb borrow instead of lend hurts my head.
“Hey, borrow me a dollar.”
“And then I borrowed him my car.”