Phenomenal post and a very interesting question you asked.
Well, It's a very long story if you ask me simply because I do a lot on sundays, It just depends on the sunday exactly.

On sunday I usually love to be happy , So anything I do on sunday I always make sure it makes me happy, Like making sure I'm well fed and staying fresh with some dope and classy outfit and I also love to go for some outing with a couple friends and just smile till the day is over.

Ain't that a lot to do for self care? Huh?😆