When you think about growth opportunities today, you might look at different measurements in your business based on what your overall strategy is. For example: If you measure penetration, your strategy may be to broaden the appeal of your category by increasing penetration of your loyal shoppers. If you measure market share, your strategy may be to grow your share of the market by “stealing” share from competition. If you measure loyalty, your strategy may be to increase your “share of wallet” (or loyalty) through effective in-store marketing programs. Etc., etc.