It's 2am. You've successfully mani-pedied, charged your iPod, downloaded a movie onto your iPad and dug out your fave travel pillow. Winning. But with all the group notifications pinging, surrounded by piles of clothes and an empty suitcase, you just can't get into your packing groove. OK, breathe! Put on some chill tunes, stop checking that weather app and discover the vacay hacks you've literally been waiting for all your life. Necklaces inside straws to stop them tangling? GENIUS! Bikinis rolled inside sunhats? PERFECT! Sunglasses inside clutch bags? Of course. You've got it down, babes. Just don't forget your passport...