A smart phone is probably the most useful travel item, but I can also highly recommend an Aero Press for good coffee while on the road. I finally got fed up wit

A smart phone is probably the most useful travel item, but I can also highly recommend an Aero Press for good coffee while on the road. I finally got fed up with bad hotel coffee and got one, and I am seriously impressed! Pair that with one of those small portable water heaters and you can have a good cup almost wherever you find yourself.