Charlie Sheen Jail Bound -- Chew on This!

6/7/2010 5:10 PM PDT
Moments before Charlie Sheen boarded a plane to Aspen today, dude made sure he had the one thing a smoker needs to survive a stint in a non-smoking jail ... Nicorette gum.

Sheen is due in court in Aspen at 3 PM PT -- where he is expected to cop a plea and immediately begin serving time.

Stay tuned ... we'll be livestreaming from court when Charlie arrives.