I write three pages every day (one side of the paper only). That’s about 1100 words. Then I stop, having made sure to write the first sentence on the next page, so I never have a blank page facing me in the morning.
Pullman used to work in a writing shed but gave it to a friend when he moved on the condition that the friend would pass it along to another writer when he’d finished with it. Pullman’s shed reminds me of George Bernard Shaw’s rotating writing room.