Don't Panic, and Always Carry a Towel The Hitchhiker's Guide to the Galaxy
To any interstellar hitchhiker in the Galaxy, a towel is the most useful thing. It seems to have great value, and it nourishes you with that fond warmth in the cold of space or as you bound across the cold moons of Jaglan Beta. But most importantly, a towel has immense psychological value. Yes, the above sentences are a mix-match from The Hitchhiker's Guide to the Galaxy. And they do describe the importance of a towel to any of us, for e.g: you can lie on it; you can sleep under it beneath the stars which shine on the desert; use it to sail a mini-raft down the slow heavy river or deep, deep oceans; wet it for use in hand-to-hand combat; wrap it around your head to ward off noxious fumes or save some from a fumy fire; you can wave your towel in emergencies as a distress signal, and of course, you can dry yourself off with it if it still seems to be clean enough. Thus it stands to reason, that one should always know where one's towel is.