WOW, AirHoss....THAT'S preparation and dedication!
I never traveled anywhere (especially overseas) without my electric kettle. Cost about $20 and boils water within a couple of minutes. Comes in very handy for not only oatmeal and other instant foods, but great for in-room coffee (which one usually doesn't get at an international hotel). While it's not all that small, it is light and you can store what you'll be heating up inside of it.
I also never went anywhere without a supply of cheerios.....can be eaten dry if no milk is available and is healthy.