Cardigans are slow learners and they'll hate using computers.

V-necks won't add any originality to your business plans, but they'll probably look quite dashing.

Sweater vests combine the best of all worlds, and plus their armpits won't sweat. We recommend option three as the safest bet.

Oh, and anything made of wool will need to be shown the door.

Seriously, wool is itchy.