I highly recommend a folding keyboard for traveling around. It's like a build-in case.
Targus used to make an excellent one that folded up into something the size of an iPhone, with a metal back that was tough as rocks. No longer.
The
Logitech 920 Foldup Keyboard looks like the next best thing. Folds up, holds the iPad, and turns off when you close it up. I can vouch for good Bluetooth performance on my Logitech MiniBoombox speakers!

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