Get a New Perspective on Guides

In a previous tip, you saw how you can turn any object into a guide. Take this a step further and start using guides as a perspective grid. Just draw straight lines that match the perspective of the objects you'll be drawing. Once you're happy with your perspective grid, turn the lines into guides by choosing View>Guides>Make Guides. Then you can ensure that you'll be drawing to proper perspective throughout your illustration. You can even turn on Smart Guides (Command-U [PC: Control-U]) to help you align your paths to this new perspective grid.