You don’t really (or only) do your best writing after midnight. You don’t need your favorite pen. You don’t need a glass of whisky on your desk. You don’t have to have your usual seat at the coffee shop. You don’t have to be “in the mood.”
Take ten minutes right now to list all of your superstitions about what you require to be able to write. Then strike through each one of them with a red pen (or any old pen). Free your brain and let it flow.
This tip is from 19 Tricks to Shatter Writer’s Block. If you missed any of the previous tips, you can find them all in the Hack Your Noodle section of Read Write Repeat.