phone charger for my phones. That way, you only need one USB mains unit or a laptop to charge it. My Apple charger is small so I don't need to worry about it too much, and I have one world adapter that is probably one of the smallest I can get, and also a single adapter for the country I am visiting for my MacBook Air because it's tiny anyway. All of these come in my cabin bag because I cannot risk having my checked baggage delayed even for a day with it, or I cannot work. I also carry a USB cable x 2 (one is for the phone), Ethernet cable, USB-to-Ethernet adapter for Mac, SD card reader, USB light, and a Bluetooth mouse. All of these fit into a cable bag measuring 5x5x20 cm. They also live in my cabin bag as I have ones for home use anyway, so that I don't have to worry about leaving it behind at home. i do the same thing - keep spares of everything i need in my carry on luggage. for chargers, i also just use usb chargers, other than the computer which is tiny. you can change the settings on your computer to pump more juice into the charging item as well so it doesn't take as long as a usb charger usually takes. quick_dry 28-12-2011, 01:29 PM on USB chargers - I bought extra iPad chargers, they cost the same as the iPhone charger but give double