To be perfectly frank, the broadness of your question suggests that you know little about the characteristics of tailored suits. Of course, we all have to start somewhere, but you might be expecting too much if you think you can learn enough between now and your fitting on Friday to dictate a bunch of details on the suit. In fact, that is almost surely the way to get it wrong. If I were you, I would stick to as plain vanilla a suit as possible. What you have suggested (two-button, notch lapel, charcoal, no cuffs) is pretty safe. A mistake many guys make is trying to fit a bunch of distinctive or unusual details into their first suit and they end up with some kind of Frankenstein monstrosity. If you really want to develop an understanding of the whole process, I would suggest reading up on it here and in a couple books and then for your second suit, suggest a few refining details that might improve on your first suit. As straightforward as it is, that is great advice. Plain vanilla it is. I guess I just didn't know if the tailor was going to pop any questions about which I would have no idea. Thanks very much.