My favorite children's book is"A Good Day" by Kevin Henkes.
It starts out
"It was a bad day"
I laugh to myself  every time. Even on such a small scale, I love irony.
But seriously, it's a book I wish I'd had as a child, a story of how a bad day can become a good one. Because now, as an adult, it's a lesson much harder learned. Some days, I can overcome a bad day. But mostly, I can't. The kick-in-the-stomach feeling lasts and lasts, and causes my already short temper to be Insta-Fuse.
I had a good day yesterday. I got (almost) everything done: I cleaned out storage bins by the front door, I did (almost) all the laundry, I emptied and reloaded the dishwasher, I made dinner, I took kids to park, I went through my 1st graders botomless backpack, I did school pick-up twice, I got gas, I read books to the little kids, I went to the gym, I trimmed back dead plants, I re-potted plants, I went by the store. I put together two storage boxes from Ikea.
A good day.