I do on occasion, but get around it eventually. I read a book a while back where someone went through and corrected all the mistakes. Hardly a page that was not touched. I loved it and still have it.

Yes, it worsens with age. I have always been an absolute stickler about spelling, and its difficult when I can't remember now. I write it down till it 'looks' right and keep a pocket size dictionary in my purse now. It's become a problem since menopause...but I'll keep this problem and not have to deal with the other every month!