It's been awhile since we brought it up, so:
Did you know you can open the Checkout Wizard without clicking on it? Just hit the F5 key, found across the top row of your keyboard!
Many wizards can be quickly open this way by using one of the special F-keys; some will need to have the Shift or Alt key (on the bottom of your keyboard) pressed as well.
Which key opens which Wizard can be seen by looking to the left of the wizard name: