I spot lots of them in our local paper, I got so annoyed with one weeks edition that I highlighted all of them I found and sent the paper back to the editor. But, reading some of my comments both here and on my blogs all I can say is - guilty as charged! It is hard to spot your own mistakes when you know you told the computer to spell it correctly!!!*grin*
I had a tour around the Times newspaper plant some years ago, and when we were have the beer and sandwiches at the end in the Boardroom the subject of mistakes/typos was brought up. We were challenged to find any in the Complimentary issue we were given. Needless to say none were found, and we were told that its one of their aims.
Its not so much the Typos that get me but the use of the wrong words, i.e. 'brought' instead of 'bought', which you hear all the time on radio/TV.