maybe im just lazy and immature, but i really enjoy being in sweatpants and t-shirt all day. i only put on jeans and a button down 2-3 times per week.
also when you have little kids its such a privilege to be home all day, being able to take a 5 min break to go give them a hug and kiss and wrestle around with them a little bit.
im super comfortable and productive working from home, i love it.