Today's challenge is simple...no, it's not. In fact it is probably one of the most difficult to date.
Think about what you are most afraid of in life and do something today that will force you to face that fear.
If you fear speaking in front of large groups, ask to give a presentation at work or sign up for a public speaking class. If the creepy crawly in the picture over there freaks you out, go watch Arachnophobia. Or better yet, take a trip to your local pet store and have a heart to heart with the owner about the spiders.
Whatever it is, face your fear and you will begin to conquer it.