1. In a network environment that includes a client that is network connectable to a server over a wireless network, the server configured to perform operations on documents on behalf of the user of the client, a method for the client causing an operation to be performed on the document while potentially conserving the bandwidth of the wireless network, the method comprising the following: an act of the client sending a document-inclusion instruction to the server, the document-inclusion instruction including an identification of the document, but not including the document itself; an act of the client receiving an indication that the document identified in the document-inclusion instruction is unavailable to the server; and an act of the client sending the document to the server so that the server may complete a document-inclusion operation corresponding to the document-inclusion instruction.