Ok here's an unusual one that I need to know if possible.

I have a current workbook that is active most of the day. What I need is a macro or something that autosaves the workbook, then closes it if left idol for a period of time, say 15 mins.

Or another slant on this action, if the workbook is left idol for X time then some sort of cover sheet opens to hide the workbook until a password is entered, similar to a windows screensaver type action

Please if anybodys got any answers or other suggestions please let me know