It’s a familiar situation. You’ve been working hard all year and are looking forward to those two weeks in the sun that are just around the corner. But when you get to the airport you realise you’ve forgotten your hotel details – and where’s that new digital camera you were going to christen? With the boom in smartphones and travel apps, you need never suffer these frustrations again. Here’s a rundown of our favourite apps for taking the sting out of your holiday preparation.