The amount packed into a suitcase varies from person to person, whether they're willing to wash clothes while away or sacrifice luxuries for a few weeks.
Some people pack, unpack, put half aside and repack but there are many other ways of saving space and weight in travel luggage.
Escape Travel has tips for the packing process.
1. Passengers must comply with weight restrictions and they are enforced strictly these days, especially on low cost airlines. Steep fees apply for overweight luggage so weigh it before heading to the airport.
2. Try a vacuum pack. Clothes and other bulky items can be reduced in size by using these. There is a lot of air trapped in certain item and sucking this out can save a lot of space that could be used for other items.
3. Don't leave home without toilet paper or travel insurance. These two items can become the most important and both weigh very little, so it won't result in a packing compromise for luggage weight and space.
4. Just because your luggage has been checked in don't assume it will get there. Always keep valuables and necessities at hand. There is less chance of it getting lost in the cabin if you keep it in a carry bag. More than 29 million luggage items were mishandled globally during 2010 so keep valuables and essentials in a carry-on bag.
5. Going to be away for a few weeks? There will be time to wash clothes or make use of hotel laundry services. Alternatively, wash socks and undies in the bath with store bought washing detergent. But beware of hotel laundry service prices.
6. Taking an extra bag is a good tip. For day trips or dividing dirty clothes, an extra bag will be handy. Recyclable plain plastic bags can also come in handy for storage.
7. Rolling jeans and pants will save luggage space. It also minimises wrinkles and makes bulky items easier to fit.
8. Shoes and boots can take up a lot of space so stuff them with socks, scarves and other accessories. This will save a lot of packing space and contain paired or small items that could get lost.
9. Beach towels, toiletries and other items may be provided by the hotel so don't pack what you already have available there. Take advantage of facilities and leave non-essentials at home.
10. Wear heavy or bulky items on board. Big jackets and jumpers can come in handy if the in-flight air conditioning gets too cold.
The last tip is to make your suitcase stand out. On an airport carousel bags start to look the same and this can cause some confusion so tie a coloured ribbon or put a distinctive marking on to make it distinguishable from other bags.