I stepped on the flat iron I had a few months back and broke it. I bought a cheap replacement which I hated and gave to my 11 year old (who has straighter, finer hair than I do, anyway.)
I picked up a Conair MiniPro little travel straightener tonight. It is dual voltage, and it heats up FAST! It worked great on my bangs. It's tiny, so I wouldn't use it for every day (I usually let the natural curls go), but if it holds up on the trip- it's something I would recommend, especially at less than $20.