I've heard from some friends that using prescription bottles works pretty well too. though I agree with kornbread that you should definitely not put it in your carry on baggage, not only is it the first place they usually check, but you also give them more opportunities to check your bag. personally I always get stopped for "random" searches so I just don't bring anything with me at all (just find something when I get to wherever I'm going). Depending on how far you're traveling, driving is by far the safest way to transport small amounts of cannabis.