Winter time is coming soon, and that means having to wear a lot of sweaters outdoors.
At the workplace, I can usually get away with a nice sweater without any patterns on it, thanks to being in a programming field with little client contact. But I am still expected to keep a business-casual level of attire.
The problem is, the office kicks up the heat throughout the building during the winter, and it can get unreasonably warm - at which point I need to remove my sweater.
Most of the time for warmer weather I wear a polo shirt for business-casual, but these all have collars and buttons that bump up against a sweater, so I can't just wear one underneath.
What other options do I have to wear under a sweater that would still keep the same business-casual level of professionalism as a polo shirt? Preferably, I'd also like to avoid having to switch shirts in the middle of a work day.