Wearing a suit when you're told jeans are the norm can make you seem stuffy; wearing shorts and sandals when everyone else is wearing suits makes you look oblivious.

Michael Narwani, a tailor and the owner of Custom Clothiers in Wellesley, Mass., says his bespoke suits vary from around $700 up to many thousands, but '$1, 000 would buy you an excellent suit.'

Usually we think of a matching jacket and pants when we hear the word suit and that use of suit goes back almost 600 years, although the suits worn then were of quite a different style.