Just for fun, try searching the Internet under “mistakes investors make.” You’ll find articles that list 15 mistakes. Our four. Or 18. Or seven. Or 10. And almost every list will include mistakes that others don’t.Mistakes. We all make them. But judging from all these articles, and all the errors so many of us commit, it’s a wonder anyone makes it to retirement in one financial piece. Of course, most of us don’t make catastrophic blunders, like betting our life savings on a hot tip involving commodities markets. Still, it’s worthwhile now and then to remind ourselves where we can















