Borrow Shapes from Photoshop to Use in Illustrator

Using this theory of exporting paths to Illustrator (see previous tip), why not take advantage of the many custom shapes that are built-in or can be loaded into Photoshop? Get the Custom Shape tool (U) and click the Paths icon in the Options Bar (it's the middle icon in the group of three icons on the left). Select an object from the Shape Picker in the Options Bar, then click-and-drag to create your object with the Custom Shape tool. This will create a Photoshop path. With the object still selected, choose File>Export>Paths to Illustrator to save the path. Now switch to Illustrator and go to File>Open to "transfer" the custom shape.