I use the finsport fly wallet exclusively nowadays, if you guys can get them out there you wont be sorry.

The finsport has detachable zip loc compartments and hold stacks of flies.

The good thing is transparency - so the flies are easily identified and dried.

http://www.uksaltwaterflies.com/tackle_accessories.htm

http://www.bearsden.com/page295.html

All the best
Mike