The tentative itinerary of a trip greatly dictates the kind of luggage and equipment to be carried. For example if you want to go up a mountain, you may want to carry a pair of waterproof binoculars, gaiters, an insulated thermal bag and hiking boots. This would be inappropriate for a beach trip during which time you would need slightly more than your swimming trunks. Sometimes you may be unfamiliar with your destination, in which event you can check with websites like www.tripadvisor.com to see what other visitors have said about the destination. For a fun trip, preparation is key.