Phil
Moleskine diary - great diary/ notebook/ travel planner
iPhone - apps for travel, cycling, languages, games for Luca, internet and maps on the go
Canon EOS - great camera, worth the weight and hassle of carrying it
Linda's Kindle! - although it's Linda's really (see below), I sneakily downloaded a few books to it too
Old fashioned shaving gear - shaving soap in a bowl and a badger-hair shaving brush might seem like a ridiculous thing to bring travelling, but it's the one luxury I wouldn't travel without - plus the soap lasts over a year, which means no need to worry about replacements on the road


Linda
A pair of cosy pyjamas & slippers - climate appropriate of course. Simple but esssential must-pack items for me are a comfortable pair of pj's and soft and light slippers as it helps to make me feel at home when I am in them no matter where we are staying.
My (Petzl) headtorch - I would never leave home without one or indeed be at home without one
Amazon Kindle - having agonised over whether or not to buy one for ages and having envied people on the beach with one for months Phil came home with one for me the other day as a (pregnancy) pressie. I am an avid reader but a very fast reader too and so this was the perfect gift for me.  I LOVE it, LOVE it, LOVE it. And Phil seems pretty fond of it too...hmmmm.. :)
Troop (London) Canvas handbag - this is a handbag I bought in Malta a couple of years ago and we've become great travelling companions. It's foldable, very lightweight, the perfect size ( for my bits and bobs and Luca's toys :) )  and machine washable to boot.
Flip Flops - a must for the beach but also for campsite showers etc.


Luca
Paddington Bear - Luca's stalwart of a travel companion
BoBike bicycle seat - a great bike seat that fits with fully loaded panniers and that he loves
Swimming ring - his favourite swimming accesory which he'll happily float around in for hours
Backpack - his little backpack is ideal for keeping all of his toys together
Crocs - the perfect shoes for walking the streets and sands of SE Asia


For Travel:
Petzl head torches - perfect for camping, reading at night and as front bike lights
Packard Bell notebook - great for wifi, updating the blog, etc.
Silk sleeping bag liners - we used them for camping in Europe and also sprayed them with mosquito repellent for use in SE Asia
Ortlieb waterproof bags - foldable waterproof bags that are perfect for spare luggage, as laundry bags and as bags for the beach
Amazon Kindle - it's been mentioned twice already, but having lugged around up to ten books in our panniers at any given time, the Kindle really is a wonderful travelling companion for those travelling light


For Cycling:
Topeak Alien II multi-tool - everything you need for repairs on the road
Ortlieb panniers - waterproof and incredibly durable
Brooks saddle - perfect for long days in the saddle
Schwalbe Marathon Plus tires - virtually puncture proof
Cycle star handlebar mirrors - we couldn't imagine cycling without bike mirrors now