A thread at alt.rec.hiking discusses the usual issues of whether to take a fuel bottle on a plane (in a word: no) and what to do to avoid pack straps getting caught in baggage-handling machinery. This looked like an interesting tip:
What we have done is show up at the airport with a couple of boxes of Saran
Wrap in our carry on, wear the backpacks to the checkout line, then take out
the Saran Wrap and wrap our backpacks with it making it several layers thick
and pulling it tight as we do it. We found this to work very well, is
fairly cheap, and we don’t have to go find a special place at the airport
where they provide some sort of service or sell a box or whatever. We have
done this with child car seats also with really good results.
Where would this world be without duct tape and Saran wrap?