Does going off the record ensure that my chats won't be saved anywhere?
Unfortunately not. People can choose to access Google Talk using a variety of third party clients and some clients save chats locally to the users' computers. We can only guarantee that when you go off the record, the chat history is not being automatically saved or made searchable in either person's Gmail account. We can't guarantee what the other person is doing, since, as is the case for all chats, the other person could always be cutting and pasting, and saving the contents of the chat elsewhere.