Composers have famously carried little black books with them to jot down ideas, regardless of where they are when inspiration strikes.  I don't necessarily do this, but I do find myself thinking about composing pretty much everywhere - while walking, driving, eating, etc.  And, I find myself working on pieces in various locations.  Obviously, when we travel we are forced to work outside of our normal spaces and sometimes get some work done in a hotel room or in a cafe.  I have always enjoyed working in cafes and coffee shops, where there is some bustle but also some ability to concentrate.  At the same time, I also like very quiet and secluded places where I can really focus on creating ideas and hearing them in my head.  However, those quiet and secluded places seem to be less and less common these days.  Today I find myself in a library where it is relatively quiet, but not without people walking by and some ambient noise.  I have my score for Magnolia Star (latest wind ensemble piece) here and I'm thinking about sounds, sections, and form.  It's nice to be able to get some amount of composition work done from anywhere.