"A towel ... is about the most massively useful thing an interstellar hitchhiker can have. ... 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 ... wet it for use in hand-to-hand combat. ... Any man who can hitch the length and breadth of the Galaxy, rough it, slum it, struggle against terrible odds, win through and still know where his towel is, is clearly a man to be reckoned with." â€" The Hitchhiker's Guide to the Galaxy, Douglas Adams
