Hide Headings, Formula bar, Gridlines, etc on all workbook sheets

I would like to hide the heading, gridlines, and tabs on the entire workbook. I currently can only hide these on the first activewindow that appears on workbook open. My current code is:
Application.DisplayFormulaBar = False
ActiveWindow.DisplayWorkbookTabs = False
ActiveWindow.DisplayHeadings = False
ActiveWindow.DisplayGridlines = False
I had thought that simply replacing the activewindow with application would do the trick, but it does not. I would like this to occur on the initial workbook open event. Thanks in advance.

That did not work properly. I received an application or object defined error message. I noticed you declared Worksheet in two variables. I think that may be causing the problem, but I am not sure. I realize that I can save the workbook with the show features selected in each worksheet and it generates the results that I desire, but I would like to ensure that this happens at the opening of the workbook every time.