Tips to keep in mind while packing for a long travel
Scan your passport, passport photos and paper tickets (if not the e type) in. Store this (in an email for e.g.) in your web based email account. You can also store the details of your emergency 'lost card' telephone numbers in your web based email account so you know who to contact if your credit card or ATM card is lost or stolen. This way, even if you lose everything, you have immediate access you’re all important information.
Split up your bank cards, cash, traveler’s cheques and credit cards as much as possible in different pockets, your bags and wallet when packing.
Use general/small bottles to pack toiletries and other small items. You can also use small bottles to repack shampoo or lotions so that you don't have to always carry a big bottle with you. This is especially useful if you normally take these items in your carry-on luggage.
When you are packing things into a backpack, place the lighter items at the bottom and the heavier ones on top. Your bag will feel lighter this way as the pack rests on your lower back. It is also smart to place the things you use the most on top.
It is always handy to have a few plastic bags around certain items, especially toiletries. Pack only what you know you will use and if you are traveling for more than three weeks, plan to wash on the road.
When packing a flashlight or torch (or any other item with batteries for that matter), turn the batteries around so that if the item is accidentally turned on, you won't empty the batteries. Don't forget to turn the batteries back around when using the flashlight.