Just when you thought your holiday wash bag couldn't take another bottle

Is your hair prone to disintegrating into a straw-like mist when exposed to the hazards of chlorine, sun, wind and salt water? For those of you still reading, we give you Swimcap - an unguent formulated to water and weatherproof your precious locks during long spells at the pool or beach. True, probably not one to offer around on a stag do, but practical nonetheless. £17, from Philip Kingsley