Allow the manual vs. automatic recalculation option at the workbook level
Sometimes I work with huge workbooks and sometimes I don't. I would like recalc to happen automatically in small workbooks and manually when working on the larger ones. It's annoying to toggle between those options. I would prefer that the option was set at the workbook level, so when I open that huge workbook it is already set to "Manual".
However the workbook is set - manual or automatic is the way it should open. Can you imagine if the print area changed back to the default every time you closed a workbook? Of if the column width changed back to the default? Hours would be spent re-fixing the workbooks.