Men: Any tips in buying a suit?

I am a professional. I wear ties and a sport coat or blazer occasionally. But I don’t wear suits. I have an old suit that is out of style and ill fitting, and I need a new one. I don’t want a vest—so a two piece suit. I also don’t want that new modern style of really snug legs. But aside from that, I’m really kind of lost.

I went to the Jos A Bank website and they have a dizzying variety of suits in all different price ranges. I will be going there in a week or two and I wanted to be armed with some knowledge.

My dad, who always was an impeccable dresser, used to help me with stuff like this, but he died 5 years ago so I’m left solo.

And then I remembered all you well dressed folk.