I too wore clothes during the day, but yes larger than the pre pg, soft cotton stretchy leggings are my favourites! With the twins I was up, showered, makeup, etc BUT they were in the SCN and I didn't have babies to look after so I had to do something with myself!!!
With DD#3 I was showered and dressed, but just a headband in the hair and little or no makeup!, will see if with #4 I can even be bothered getting dressed!!! Granny knickers are a MUST worst luck, but g-strings just don't do anything much with a huge maternity pad !!!!
In labour I wore abig soft tshirt nightie, easy to get out of the way, but if up and walking, covered all the bits!!!