If you're going to mail it, look for the pages that have an Attachment Sequence Number.
Watch out for forms that have two sides.
Those, along with 1040 [update: and its schedules], are all you need to send. Usually. Note: if any form has a line marked "see such-and-such statement" then you will need to attach that statement also.
"such-and-such" statements go at the end in the same order as the forms they apply to.
TurboTax CD.download should give you an option to print all this into a PDF.
