Objects outside of the page trim (on the pasteboard) will not print. You can also set Non-printing on the Attributes panel (Window > Output > Attributes).
Do a "Save As" rather than a "Save" of your InDesign file.
This will get rid of a lot of old data that even if something has been removed, may still have some residual elements still in the file.
"Save As" helps to keep your file clean and will likely reduce the file size.