Switching Between Different Tabs / Worksheets

One of the keyboard shortcuts I use all the time in Excel is the one for switching between tabs or worksheets within a workbook: Ctrl+PageUp or Ctrl+PageDown.If you are an avid user of Tabbed Browsing, you may be more familiar with using Ctrl+Tab / Ctrl+Shift+Tab to switch between Tabs. That is the shortcut used by Internet Explorer, FireFox, and Safari. That probably makes more sense than PageUp