Need inspiration to get those feet moving? Don't feel bad -- we've all been there. Whether we're suffering from a severe lack of energy, a lull in our motivation or we're just turned off by the crappy weather, walking sometimes takes the back burner to more important activities, like, say, relaxing.

So for those of you who need a reason to get moving, here are 30 reasons to walk--one for each day in September--courtesy of MBT Shoes. Here's a small sample of the reasons:

• It's free
• It's good for you
• You get much-needed fresh air
• It's good for the environment
• More here.

What are your reasons for walking?