Three days to go and we are packed already. Quite an acheivement , we usually leave packing until the day before travel, but we wanted to make sure the rucksacks are not too heavy.  And they're fine, despite the carrier bag of mosquito repellent and sunscreen!
Colin has a 70 litre rucksack, I have a 40 litre one and we also have a small 15litre backpack which holds essentials for the flight and we are taking a travel bed for Dominic, which allows us to save money by getting double rather than triple rooms in a lot of places. So far, Colin has about 1/4 of the room left and the flight bag is almost empty. We have packed a foldaway holdall for the inevitable souveniers we pick up along the way.
People always ask what we take for an extended trip or how we manage to fit everything for the 3 of us, so here's a list of what we have packed.

For me:
3 long skirts
1 pair leggings
3 vest tops
3 white thin cotton shirts
3 bras
6 pairs knickers
1 light cardigan
1 pair tiva sandals
1 pair cheapo flip flops
1 pair Vans
2 bikinis
2 sarongs
2 small head scarves
1 make up bag: tinted moisturiser, black eyeliner, black mascara, bronzing pearls, red lipstick, lipgloss, nail polish, highlighter cream, body spray oil, tweezers , 1 sachet powder bleach, 1 bottle peroxide  cream, 2 wash in haircolour sachets.
1 small ziplock bag with 2, 3mm crochet hooks and 12 assorted skeins of embroidery cotton - I'm going to crochet tiny jewel coloured hearts and stars into bracelets and necklaces to give to local kids rather than tooth rotting sweets!

For Dominic
4 long sleeved T shirts - very thin Fruit of the Loom value range
2 T shirts
3 pairs long shorts
3 pairs light cotton trousers ( made by my own fair hand!)
7 pairs pants (only just potty trained)
1 UV swim suit
3 sun hats with a neck flap (this type of hat is hard to find abroad, so I take a few to deal with inevitable loss along the way)43 pairs socks
1 vest with poppers to sleep in
1 pair Vans
2 pairs crocs
1 light fleece hoodie
1 thin cotton cotton sheet
1 light fleece blanket for airconditioned trains at night
1 small square cushion
12 nappies (for nights or long journeys with no toilet breaks)
1 travel potty with liners
1 water bottle
1 mosquito net
Dominic has a separate bag with 6 Mr Men/Little Miss books, some crayons and a notebook and a bag with 12 or so micro machines cars, he will also take "Noel" a fleece monster I made when he was a baby, and Philip a small orange and blue giraffe.

For Colin
2 pairs linen trousers
1 pair shorts
1 kurta
1short sleeved shirt
3 T shirts
1 swim shorts
1 flip flops
3 prs boxers
2 pairs socks

Electronics
2 Tablets
1 phone
1 MP3 player
1 camera
3 chargers (1 charger does both tablets and the phone)
1 travel alarm clock
1 bendy neck torch

Toiletries/Medical
4x Mosquito reppellent gel/ cream with DEET
1 mosquito spray for Dominic's buggy and the ouside of his travel bed
2x SBF 50 sprays
2 x SPF 30 suncream
2 large bottles of hand sanitiser
1 toilet roll
4 small packs of tissues
1 x hair conditioner (large)
6 shampoo sachets
1 deoderant
Razor and 8 extra blades
1 medical kit - a samll plastic takeaway box, containing, antiseptic wash, germolene, 2 sterile dressings, tweezers, sanitising wipes, medical tape, assorted plasters, calpol sachets, immodium, dioralyte sachets, heart burn pills, small scissors, adult paracetamol, corn plasters.
Anti-malarials for Dominic
Prescription painkillers and letters from the GP detailing the meds we are precribed (necessary for opiate based painkillers)

Foods
40 teabags - What can i say?- I'm English!
12 coffee sachets
12 instant creamers
8 hot choc sachets
8 cup a soups, (these and the chocolate are for train journeys where you can get boiled water on board)
4 small packs breakfast biscuits - emergency snacks for Dominic

Miscellaneous
3 small Folders - 1 for travel confirmations tickets etc, 1 for hotel bookings, 1 for photo copies of passports/visas/ credit cards etc. Plus a copy of the planned itinerary (I also scan and email this stuff to myself so that I can access it on line form anywhere in the world)
Notepad and pens
1 small zip-lock bag of washing powder
1 laundry wet bag
1 flat terry nappy square and 1 nappy wrap (for emergencies as a nappy, otherwise as a handtowel)
6 large zip lock bags
Small homemade sewing kit -  a few metres of black and white thread wound round a small piece of card. 6 needles, 4 white buttons, 4 black -all in a small "sample" bottle - a clean one!
Earplugs and eye masks
Headphones - because airline onea are always crappy
Extra batteries for the clock
1 small foldaway beach bag
1 spare foldaway bag
1 roll duct tape. 1 ball string & 4 small hooks; these are for hanging the mosquito net and for taping/lashing together theings that rip/tear/break
1 travel bed for Dominic


It sounds a lot, but actually the bags are probably the lightest they've ever been when we've gone away, even on much shorter trips - I think we took more on a weekend trip to Munich than we are taking for this entire 15 week trip, which is all the more impressive when you consider we didn't take either sun cream, hand sanitiser or insect repellent with us to Germany.
The lists of clothes above do include the clothes we will be wearing, so obvioulsy they won't be packed, as we'll be in them!