[matt_the_bass]

Hydration is key. Staying hydrated has the side benefit of forcing you to get up to use the facilities, and in turn force you to move. During layovers I try to walk as much as possible.

I like to try and sleep as much as possible.

One thing I’ve learned recently is the business class lounges are really nice for long layovers. Consider paying for a lounge pass even if you are not flying business class is you have a long layover.