Here is a challenge for all you MAP fitness experts: How would you construct an exercise routine for long distance air travelers? For example, what specific exercises would you recommend for a traveler who bounces back and forth on the 18 hour New York-to-Tokyo, Japan flight on a regular basis? Ground Rules: 1. You are limited to the standard space - business class seat with too little leg room, not quite enough head space to stand, people on either side of you (who would prefer you didn't grunt), and a tray table that might or might not stay upright. 2. No free weights as carry-on. 3. No wind sprints in the aisles.