Cheers to the Single Parent
Being a single parent is not a luxurious thing (unless you're a 40+ washed-up celebrity, then you're not really a single parent anyways because you have a trained staff....). Generally nobody chooses to be a single parent... we're all just dealing with the cards that God has dealt us.
My point remaining... I'm so thankful I don't have to do this parenting thing on my own. If you know a single parent (which chances are, you do) applaud them on the great job they are doing raising their kids. Do something friendly (like bring over dinner or offer to babysit) to take just the tiniest load off of them. And be thankful for what you have.