Furthermore, under what circumstances (if any), do you believe that mismatching ties and squares is appropriate.
Until now I've been in the camp that says they must match, but I'm beginning to have second thoughts.
Really? That's interesting. I always thought of it as an attention to detail thing. Also, the senior guys at most of firms I've been with almost always wore matching ties and squares, thus I assumed it was the norm.
@Dinosarti A thoughtful two cents it was. The way you framed the issue in the form of a question is useful; my answer would definitely be no. Also, I appreciate your bit of guidance.
Thanks all for your replies. Initially I felt foolish that I didn't know tie/square etiquette, however those feelings gave way to feelings of liberation. I feel free to mix a match and that's a great feeling.