It would be nice if there was a setting that trimmed trailing (end of line) spaces (and tabs) when saving the file. Yes, I know there's a macro to do this, but hitting "Alt+Shift+S" isn't exactly a simple or convenient keyboard command. Ctrl+S is more intuitive. Also, the macro isn't safe to use due to this still existing bug documented here: http://sourceforge.net/tracker/index.php?func=detail&aid=1927783&group_id=95717&atid=612382
I don't see any practical value of having trailing spaces littered throughout the document after saving. Please consider making this a setting that maps directly to all base, internal save commands (ie, "Save", "Save All", "Save a Copy As", plus all save-related toolbar icons).