Itīs the only way to be sure that you have it after you leave the plane. You could have had a nice flight <img src="images/graemlins/grin.gif" alt="" />. Maybe your luggage had one too ... but to a totally different location <img src="images/graemlins/frown.gif" alt="" />. In that case the kit in your suitcase wonīt help.
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If it isnīt broken, it doesnīt have enough features yet.