Sitting at a desk all day is a pain in the butt -- literally. In summer particularly, I wish I was working a job where I had to move around. Unfortunately, there aren't too many jobs like that for a writer, so I will continue to be glued to my computer and relish the coffee breaks.

Here are some great tips from our friends at DIY Life on how to stay active even when you're working a desk job. Yes, it means getting up and actually moving around, but that's a good thing. Trust me. Check out their post for some great resources on getting moving at work, including desk yoga.

Here are a couple of my own suggestions -- when you're feeling the 3pm energy lag, instead of re-filling your coffee cup for the umteenth time that day, take a walk around the block. I swear it will wake you up. If you don't have time to do that, hold your hands above your head for a full minute. You'll look full but it will get the blood pumping.