I have separate house clothes: old or stained tshirts, sweatshirts, sweatpants, leggings, shorts. I work in an office with a dress code, and at home I have a toddler and a dog. I change as soon as I get home to minimize the chance of accidents on my nice work clothes. That said, I do wear my house clothes outside for yard work, dog walks, or quick shopping trips (depending where I’m going and with who lol).