Tip of the Week: Reposition as You Create Objects
So you're right in the middle of drawing a frame or a line and you realize that you need the object a little further up the page so you can get a better idea of how big it should be. There's no need to stop the drag and reposition -- just hold the spacebar and you can move the object anywhere you want. When you're satisfied with its position, release the spacebar (but not the mouse) and continue to draw. This tip also works while drawing in Photoshop or Illustrator!
-- Sandee Cohen
Senior Editor, InDesign Magazine; Author, InDesign CS3 Visual QuickStart Guide