This is what we started off with :

Clothes Brian

2 pairs of pants (down to 1 pair)
5 pairs of socks (down to 2 pairs)
1 pair running shoes
5 pairs of underwear (down to 3 pairs)
3 t-shirts (down to 1 t-shirt & 1 short sleeve shirt)
1 long sleeve shirt (down to 0 because too used)
1 warm sweater
1 swimsuit/shorts
1 pair of flip flops
1 buff

Clothes Marie-France

2 pairs of pants (down to 1 pair)
5 pairs of socks (down to 3 pairs)
1 pair running shoes (changed to hicking boots/motorcycling boots)
5 pairs of underwear (down to 3 pairs)
3 t-shirts (down to 2 pairs)
3 sleeveless shirts
1 warm sweater
1 skirt since Ecuador
1 swimsuit
1 pair of flip flops
2 buffs (reduced to 1)

Riding gear

Riding pants
Riding jackets
Riding boots
1 pair of gloves each
Helmets
Rain suits

Spares and tools

1 standard toolkit for 1100GS
2 tire levers
1 spare Clutch cable
1 spare speedo cable
1 spare throttle cable
1 spare final drive bearing
1 spare final drive seal
1 tube of quick steel
1 front tire tube
1 rear tire tube
1 flat tire repair kit
1 spare clutch lever
12 feet of bale wire
1 spare v-belt
1 spare fuel filter
1 spare oil filter
1 BMW 1100GS Owner’s CD
1 litre of engine oil
2 spare spark plugs
1 spare quick disconnect for fuel lines
Spare bolts and nuts
Spare quick disconnect seals

Electronics

1 mp3 player
1 Toshiba Laptop
1 Garmin E-trex legend GPS
1 Cannon digital camera

Camping gear

2 cylinders for fuel (1 liter capacity each)
1 MSR dragonfly stove
1 MSR cooking kit
1 Tent
2 sleeping bags
2 Camping pillows
1 Tarp (down to 0)
2 thin climbing ropes of 30 feet each (dwon to 1)
2 sleep sheets

Documents

Passports
Ownership papers
Maps
Copies of passports
Expired cards for throw away wallet
Copies of birth certificates
International Drivers License (expired)
International Drivers License (new)
Quebec drivers license
Quebec Registration
1 DVD for data storage

Washing kit

2 toothbrushes (changed several times since we left!!)
Toothpaste
Dental floss
1 deodorant
1 rasor (the type where you just uscrew to change the rasor blade)
1 packet of rasor blades
1 comb
1 nail clipper
1 pair of tweezers
Ear plugs
Soap bar
Soap bar container
Shampoo (Since Europe we use LUSH shampoo bar. It is rather expensive but it is very light and lasts a very long time. We have used the same one for 6 months. It lasts long when used in the light metal container.)

Plus our first aid kit