Please do check the legal issues where you're going--some countries/local jurisdictions do not allow knife carry. As mentioned by the other posters here, you don't really need a knife. Lots of folks take a single edge razor blade, well wrapped, instead of a knife. I personally wouldn't want to try to manicure finger and toe nails with a razor blade, but I have relatively unsteady hands.
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May your trails be crooked, winding, lonesome, dangerous, leading to the most amazing view--E. Abbey