I voted "expert" but I rather play modest and say experienced.
I view getting "Frisked" by barking security agent from head to toe as hassle.
I am addicted to nonreving to the point that being confirmed becomes boring.
Some rules always travel with just a carry on (if you can).
Know the routings on other zed carriers from the airport you will be travelling.
Have a lot of Zed tickets ready the these situations.
Always check the weather forecast.
I am sure some of you might have other advices...........
A tip if you just travel to England, leave out of STN the British taxes are not so high there.