How do you stop small everyday annoyances from really bothering you?

For example after I go to bed if someone leaves the living room door open
The dog will sleep in the living room

That annoys me because I don't allow him in the living room from in the sofa

He brings in that dog smell

He's not allowed on the sofa and he knows that

And I know it sounds trivial but it annoys me and I know my daughter doesn't care

Then again I can blame myself because maybe I left the door open
How do you stop small everyday annoyances from really bothering you?
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