F8—Select a large range of cells without holding down that mouse button by clicking your starting cell, pressing F8 and clicking the ending cell. Range selected! Esc turns off the feature.
F9—See the resulting value of a formula in edit mode by pressing F9. Press Enter to effect a “past values.” It will convert your formula to its result. Undo or Ctrl+Z will get your formula back.
F11—Choose any chartable range and press F11. Excel will insert a new work sheet with this data charted in the default chart format. The Change Chart Type button will let you choose a different chart type.