I don't have any writing routine. Sometimes I go to my local coffee shop and I write there for some hours. Apart from that, I am traveling most of the time. I write in airports, trains, hotel rooms... I can write anywhere.
For me, the best places to write are on planes, trains and at airports. Not hotel rooms but hotel lobbies. I'm really happy when I'm waiting for a plane and the message comes that it's three hours late. Great, I'll get to write!