Here’s something I’d like to remember:

Milo, in overalls, aged 2-and-a-half, watching a garden snail, waiting with his chin resting on the bench to see if it will peek out of its shell.  When it does and its eyestalks tentatively extend, he waves at it and says, in a conversational tone, “Hi.”

Here’s something I’d like to forget:

Walking into the bathroom to find Milo scrubbing the toilet bowl with my toothbrush.