Dress for the room you spend time in
Think about the part of the day that lasts longest. If you sit beneath a chilly vent for several hours, a substantial cardigan may earn more space in your bag than a heavy coat that comes off at reception. A shirt or light knit underneath should be something you are happy to wear on its own.
For example, try trousers, a sleeveless or short-sleeved top and a cardigan that buttons. You can wear the top during a warm walk, then add the cardigan at your desk. A blazer works in the same way if it fits comfortably over the chosen base layer. Check that the armholes do not pull when you reach towards a keyboard.
Carry the layer once before committing to the combination. A long, bulky cardigan may fill a small tote or trail across your arm when you buy a coffee. A shorter knit can be easier to fold into the bag. If you have a secure place at work, keeping a spare there removes one daily packing decision.
Avoid making your whole outfit depend on a scarf that you will want to remove. Check the neckline and shirt fastening without it. The same applies to a jacket worn mainly for its pockets: move essential items into your bag before you take it off.
Try the seated version
Sit for a few minutes with the layers arranged as they would be at work. A waist seam, tight cuff or thick fold beneath a waistband can become more noticeable at a desk. Adjust the combination at home rather than spending the afternoon rearranging it. Choose shoes and socks with the office temperature in mind as well as the walk there.
