There are things I wish I had paid more attention to over the years. There are happy moments that I didn't know wouldn't happen again or wouldn't happen again for a long time. Moments of love or comfort, moments of pride or excitement. Experiences I regret taking for granted. It's one reason I write.
I try to pay closer attention. When I have an experience that touches me in some way I try to notice details about it and burn it in my mind. The first chance I get I put it on paper. I've come to call these snapshot moments. Those moments that, if I could, I would capture somehow so I could go back and experience them over and over whenever I want.