Where did the weekend go?

It's seems like I left work an hour ago, but it has actually been two days. Where'd the time go? I'm looking at my weekend to-do list (yes, I make to-do lists. Go ahead and laugh.) and I've accomplished only 2 of the 19 things on it. It's 7:37 on Sunday. I sure hope this isn't a sign of how my week's going to go!