If you're a true Douglas Adams fan, you never leave home without a towel.
But today there's even less of an excuse than usual. It's Towel Day today, the official day of Adams and his Hitchhiker's Guide to the Galaxy series.
This year's extra special, as Adams died 15 years ago - so the internet is celebrating the day in a suitable manner:
Why a towel, you ask? We'll let Adams tell you all about it:
"A towel…is about the most massively useful thing an interstellar hitchhiker can have. Partly 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 round your head to ward off noxious fumes or avoid the gaze of the Ravenous Bugblatter Beast of Traal (such a mind-bogglingly stupid animal, it assumes that if you can’t see it, it can’t see you — daft as a brush, but very very ravenous); you can wave your towel in emergencies as a distress signal, and of course dry yourself off with it if it still seems to be clean enough."
And how to celebrate it? Well why not follow in the footsteps of this astronaut on the International Space Station?
OK, maybe not footsteps. Aimless floating, perhaps.
Any more questions for us about the day? Luckily, we have the answer to them all...
Feature image: APA/Twitter