I've had a personal shop! One of the tips the shopper gave me was to wear a long-sleeved top under a shift dress in the winter.
(I already have a number of shift dresses which are great for work, but only in the spring/summer/autumn as they're sleeveless and not warm enough for the office in colder weather).
Really not sure about how this would look, or if it would be smart enough for work - I'm not in a hyper-smart workplace, but like to look neat and professional.
What does the MN style jury think? Is it a 'look'' you've seen on others or wear yourself?