My card charged me a $95 annual fee for 2 years before I noticed. How often do you go through your statements?

I only caught it when I finally went through my statements line by line last night. I also found about $178 a month I could keep without changing how I live, a duplicate subscription, the wrong card for groceries – Amex instead of Citi double cash, a fee I’d stop seeing. Curious how others handle this. Do you check every statement, only when something looks off, or never? Has anyone found points that weren't credited, or a charge that shouldn't have been there?