A recent guardian piece reminded me how much I enjoy writing while travelling. After all I have a brilliant well-lit, comfortable office with fantastic views and all resources to hand....but despite that it's often not as good as a cafe in Paris, a train from LA to San Diego or even an ordinary hotel in Manchester's docks area.
When travelling you are often 'trapped' in a place for a while: an airport, a hotel room, a client's reception. Or on a train. Or in a cafe. While trapped you might as well write. Accompany that with the energy of people around you and you have all you need to generate words.
You have privacy plus 'buzz'. You have reflection plus stimulation. You are moving but you are confined. So if your novel has stalled, if your cook-book is stuck at starters, find a cheap flight somewhere.