What do you absolutely need to write? I know I need - but rarely get - silence and a reasonably neat house.
I like to have peace and quiet to write at home but bizarrely I am able to write in trains, busy cafes, planes etc. I usually try to get up at 6.00am and get words done before the day starts and madness ensues! I aim for 1000 words a day – sometimes happens – sometimes doesn't!