15% off Sitewide (Including Sale Items) @ T.M.Lewin
I found this code when I was googling for T.M.Lewin coupon codes and noticed that it’s the same one they used three months for a sitewide 10% off. This works on sale items as well but you can’t use it in conjunction with the $40 shirt and tie offer.
Please note that the coupon code is case sensitive. Also, I have no information as to when this offer will be ending but it was working just before I posted.