In this high-tech era, one books a holiday by smartphone or tablet. There are dozens of applications for it, and they can turn into virtual tourist information assistants.
Some of them can book a hotel room for you, others help you plan your itinerary. You can even find an application to help you pack your bags. It just provides you with a list of absolutely necessary things, though!
While making sure you don't forget anything, such a wise assistant will see to it that you don't carry heavy and bulging suitcases.