描述
A towel is just about the most massively useful thing an interstellar hitchhiker can carry. Partly because it has great practical value. You can wrap it around you for warmth as you bound across the cold moons of Jaglan Beta; you can lie on it on the brilliant marble-sanded beaches of Santraginus V, inhaling the heady sea vapours; you can sleep under it beneath the stars which shine so redly on the desert world of Kakrafoon; use it to sail a miniraft down the slow heavy River Moth; wet it for use in hand-to-hand combat; wrap it around your head to ward off noxious fumes or avoid the gaze of the Ravenous Bugblatter Beast of Traal.
More importantly, a towel has immense psychological value. For some reason, if a strag discovers that a hitchhiker has her towel with her, he will automatically assume that she is also in possession of a toothbrush, washcloth, soap, tin of biscuits, flask, compass, map, ball of string, gnat spray, wet-weather gear, space suit etc., etc. Furthermore, the strag will then happily lend the hitchhiker any of these or a dozen other items that the hitchhiker might accidentally have "lost." What the strag will think is that any woman who can hitch the length and breadth of the Galaxy, rough it, slum it, struggle against terrible odds, win through and still knows where her towel is, is clearly a woman to be reckoned with.