I got an email asking me about options for fitness work during the winter. I came up with this list of things I enjoy, and thought I'd share it with you. Feel free to pick one, or two, or all of them. Whatever works for you. In no particular order:

• Starting Strength by Mark Rippetoe - be sure you get the Book + DVD combo. They work well together and one is not complete without the other.

• Enter The Kettlebell! Strength Secret of The Soviet Supermen - again, be sure to get the book + DVD.

• CrossFit.com - This and Starting Strength is what I'm doing.

• P90X - a few of my friends have had success with this one.

• Combat Conditioning: Functional Exercises for Fitness and Combat Sports

• RossTraining.com. This guy is a former boxer and currently a trainer and coach. He's written some great books that require little equipment, and he practices what he preaches. Check out his videos and you will be amazed at his abilities. These are the workouts I use on the road.

• The TRX system is a little on the pricey side, but well worth it if you travel a lot. Easy to pack and easy to use anywhere, and it enables you to do about 34,241 exercises.

• Clubbells kick your ass in a unique effective way. These are some medival magic.

• Yoga - I have no references for this. Find a local class. Get a DVD. Very good stuff. If you know of a good DVD, let us know in the comments!

• Bruce Lee's Isometrics program - just be sure you turn down the volume when you watch this video, or else you'll think I'm insane for sending you there.

That about wraps it up for things I know about that you can do indoors in the winter time. You can do all of the things listed above outdoors in the winter, too, if you want to take your training to the next level.

What do you do t o stay fit in the wintertime? Let me know in the comments!