I blame my wife's sitting habits for our furniture damage
How could she have damaged furniture by sitting.
I don't know, I just blame her for everything that goes wrong or when she gives me a difficult time.
Just because she is giving you a hard time does not mean she is wrong. Blaming her all of the time for everything is just going to wear on her, rather than fixing the underlying issue.
Fine. But I still want to keep telling her that I am wrong, and that I am going to keep track of everything she does wrong.
I still think that it is petty to keep track of everything that you think your wife is doing wrong. She'll have her own way of doing things, and most of the time, this doesn't harm you. If there is an issue that is truly bothering you, you need to talk about it with your wife instead of just criticizing her.