I work in a position where wearing a suit is rarely necessary. Still, like probably most men, I love the way I look and feel when I've put on a suit and tie. It tends to change my outlook and add a little bump to my confidence.
As it turns out, I've had a major Jones for a nice seer sucker suit for quite a while. Not sure why, other than I think it looks kind of cool and it says that I'm put together without being overly formal. Plus, I love the look of a Southern Gentleman. At any rate, my wife and I went shopping and found a great deal. So I bought it. But, afterwards I realized that many of the questions I was being asked I really had no idea how to answer nor did I really know what they were asking in the first place. So, I tended to defer to "whatever you think. You're the professional."
Well, GQ has a few suggestions in their article How To Buy A Suit. I'm linking it here for everyone else who's an inexperienced suit buyer. It's weird, it's another part of our lives that men are just supposed to "get" but I just wonder how many of us really are clueless.