I've a theory that one can always get anything one wants if one will pay the price. And do you know what the price is, nine times out of ten? Compromise.
Curious things, habits. People themselves never knew they had them. [Witness for the Prosecution, also published in The Hound of Death and Other Stories.]
All I needed was a steady table and a typewriter...a marble-topped bedroom washstand table made a good place; the dining-room table between meals was also suitable.