What to pack for a round the world trip

So what do you pack when you will be living out of your backpack for 6 months. Well, I don't know, but I can tell what others have said. In planning for our trip I have been reading a number of travel blogs of other couples doing the same thing, and that is how I got to the list below:

• Passport and Visas
• Money Belt
• Day Pack
• Travel Alarm Clock (not a watch or cell phone, you don't want to miss that early flight or train)
• Flashlight (The type you wear on your head is good for when you are walking in the dark or staying in a rural area with no electricity)
• Water Bottle (Always stay hydrated)
• Plastic Mug (How else are you going to drink coffee on a Felluca sailing down the nile?)
• Ear Plugs (So you can get a good nights sleep in a multi-bunk hostel dorm)
• Board Shorts (Can double as a swimsuit and extra pair of shorts)
• Sleeping Sheet (I recommend the dream sack)
• Sleeping Bag (We only need them when hiking in New Zealand so we will rent them when we get there)
• Thermal Underwear
• Gloves
• Fleece
• Rain Jacket
• Waterproof Pants
• Hat (Very important!)
• Sunglasses (Your eyes will thank you)
• Real Walking Shoes (I have a pair of Merrell Cross Trainers that are designed for hiking, light, goretex/waterproof)
• Camera
• Camera Charger/ cables
• Long Trousers for Temples etc.
• 1 Pair of Convertible Pants (can be shorts or pants)
• Eye Covers (So you can get to sleep on trains, in hostels etc.)
• Locks for your Bag
• Lock for Locker (Most hostels have a locker in the room to store your bag in during the day, but you must have your own lock)
• Cable to lock your bags to a bed if necessary.
  
• Travel Towel (fast drying, small, and light weight)
• Travel Pillow
• Long sleeved shirt for temples/ formal
• Shorts
• iPod (lots of flights, means lots of time you will want your music to listen to)
• Bose Noise Canceling Headphones. (Not critical, but given that we are doing 38 flights, these things are awesome)
• Flipflops
• Crocs (Can be used as shoes if you need to, and weigh nothing)
• A few T-Shirts and a golf shirt
• Few pairs of travel underwear (antimicrobial, fast drying, helps you survive when it will be 2 weeks until you can do a wash)
• Socks (again try get the anti oder, moister wicking kind)
• 1 Belt
• Backpack Turtel Shell (Waterproof cover for your backpack, so when you are walking and you get caught in the rain, all your cloths don't get soaked)
• 1 Pair of Jeans
• Stuff sacks for wet and dirty cloths
• Photo of your travel companion and copy of their passport
• International Drivers License
• Watch
• First aid kit
• Some water tight zip lock bags (the big ones)
• Toilet paper (with a neck strap :-))
• Toiletries (Soap in a plastic container)
• Sunscreen
• Some paper, pens, pencils
• And a bag no larger than 65 liters to put everything above into