I’m amazed to find there are still designers out there that struggle with Adobe’s tabbed document interface when trying to get objects from one document into a second one, rather than copy and pasting them. The process is a simple drag and drop operation in both CS4 and CS5 apps.

Adobe Document Tabs

Document tabs offer simple drag & drop convenience

Select your objects and drag them from the current document over to the second document’s tab and hover there for a second or two. The second document will come to the front, allowing you to drop the objects on the page.