Just read a quote that says, "Adulthood: if you are not tired, you are not doing it right".  So true.  I am tired all the time.  Chase this, grab that, don't do that.  Then I think how dull it would be otherwise.  What did we do when we didn't have kids? We couldn't get all the chores done before we had kids, but we manage to get them done now.  Wow.  We must have been lazy lazy bums.  Life is busy and it does tire me out, but I wouldn't have it any other way.  I love the sound of flat feet on the hardwood floor at 5 am coming to climb in the bed with me for morning snuggles before the sun completely comes up.  I love that sweet face that looks up and me and asks, "patty, mommy" even though it means I have to get up from my cozy spot to fetch her a pacifier.  So if I am tired, worn out, and spent, I am loving every minute of it.