For me, the "good" in my "good day" was really enjoying the connection that I've had with my kids, as well as a bunch of my nieces, recently.
I get these little "flash-floods" in my eyes on days like that. It's not crying or anything like that, it's just that momentary rush that happens when my heart takes a snapshot of a moment to make sure it goes into my memory forever. My oldest knows when I hold a camera to my eyes for a bit longer than normal, it's because I'm having a "flash-flood" moment. It's what happens when your heart melts, ya know?
I think I'm pretty lucky. I'm not a greedy person by nature (cheeseburgers aside, that is) so I've developed a pretty good skill for recognizing moments I'll really want to cherish forever.
I'm so glad I had kids. Even when they break my stuff.