So the getaway’s booked. The passport is in hand. Now all that’s left is the packing. Now imagine this: the suitcase is sprawled on the bed eagerly awaiting an adventure but as you start to pile in the holiday essentials the dreaded realisation comes that the lid is not going to shut. Cue panic, cursing, sun-cream flying everywhere. Sound familiar? Fear not. Keep it chill. We’ve created a cheat-sheet for…