If you don't like being too serious with your outfits, consider wearing a denim shirt and jeans. Round off your getup with a pair of black leather knee high boots for an on-trend hi-low mix.
Jeans with Denim Shirt Smart Casual Chill Weather Outfits For Women In Their 30s
A denim shirt and jeans are the kind of a never-failing off-duty outfit that you so terribly need when you have no time. Why not introduce black ankle boots to the mix for an element of polish?