I know how to save a document using the standard commands, but my point is that if the document is not closed, the changes are not actually saved. For example, I work on a document for several hours and command save. i open it on another computer from Dropbox, and none of my changes are there, and when I try to save it on another computer, I get conflicted copies. The same is true if the power goes out. The auto save function is just an automatic save command. Auto-save doesn't help in the circumstances I mentioned.