I've often seen advice in publications for authors, that the best way to be productive and to avoid writer's block is to establish a routine for writing.  Set aside a regular time slot, preferably daily - even if it's only for ten minutes or so.  If you're struggling for ideas, write about anything that comes into your head - but here's where I see a problem.  If you're so bound by routine, where's the room for new ideas to enter your life or for creative thought?
I recently broke with routine and spent a few days in Rome.  I don't think I've ever said 'Wow!' so many times in such a short space of time.  It took days after my body returned home for my thoughts to get back to mundane tasks, but the trip has given me ideas for around a dozen articles, character studies, plots for fantasy stories etc.  The upshot is that I shall now try to get into a new routine alongside the daily writing, and make time for doing something completely different on a regular basis.  All work and no play, and all that...