Since we started the Let's Move! initiative, I've been looking for as many ways as possible to help families and kids lead healthier lives. And I've come to realize that if we were going to take just one step to make ourselves and our families healthier, probably the single best thing we could do is to simply drink more water. It's as simple as that. Drink more water.

My experiences at Princeton have made me far more aware of my 'blackness' than ever before. I have found that at Princeton, no matter how liberal and open-minded some of my white professors and classmates try to be toward me, I sometimes feel like a visitor on campus; as if I really don't belong.

I was out there meeting with a lot of working moms and whenever I would gather a group of women, there was always a voice that was unfamiliar to me, and it was the voice of a military spouse, oftentimes a woman, oftentimes working, many times in a position where they've had to move every two or three years, where their kids have had to change school multiple times, people dealing - families dealing with multiple deployments, dealing with the stresses of reconnection.

You see, at the end of the day, my most important title is still 'mom-in-chief.' My daughters are still the heart of my heart and the center of my world.

Some kids have never seen what a real tomato looks like off the vine. They don't know where a cucumber comes from. And that really affects the way they view food. So a garden helps them really get their hands dirty, literally, and understand the whole process of where their food comes from. And I wanted them to see just how challenging and rewarding it is to grow your own food, so that they would better understand what our farmers are doing every single day across this country and have an appreciation for ... that American tradition of growing our own food and feeding ourselves.

If I can have any impact, I want women to feel good about themselves and have fun with fashion

Exercise is really important to me - it's therapeutic. So if I'm ever feeling tense or stressed or like I'm about to have a meltdown, I'll put on my iPod and head to the gym or out on a bike ride along Lake Michigan with the girls.