Jeans and a jumper, with thick socks, on work days. (As I get cold sitting still).
Non work days, whatever is comfortable depending on plans. So jeans and a top generally; or sports leggings and sports top if I am doing yoga or long walk; tshirt and shorts over the weekend.
Always get dressed, have admittedly not always put on shoes some days and worn my comfy warm slippers all day. Warmer weather means I am wearing flip flops again too.