I once read a book in a bookstore and didn't get the name of it. I could kick myself, because I bawled my eyes out while reading it.
The idea is that we usually take notice of our children's "firsts" such as: first steps, first words, first bike ride......this book was about cherishing our children's "lasts": "If I had known that was going to be the last time you would run up to me and jump up into my arms, I would have held onto that moment forever." or "I didn't know that was going to be the last time you would hold my hand in public, I would have cherished it more"
It's so true, those "lasts" just seem to slip by unnoticed, till one day we say to ourselves "Oh, when did she stop doing our special kiss? I hadn't even noticed that she stopped"
Take time to notice those "lasts" too.