At a grocery store look at the soda or can good aisle by viewing the prices and the product locations on the shelves,which products are close substitutes,sufficiently differentiated, and have a brand loyalty(i.e.,a higher price),etc.

1. product packaging (design, colors, logos, etc.);
2. products/brand names compete most closely with each other? Are they placed close to each other on the shelves or far apart?
3. which products/brand names are aimed at cost conscious consumers? Where are these on the store shelves for grocery stores?
4. which are aimed at higher end consumers? Where are these on the store shelves for grocery stores?
5. which products/brand names have a narrower market and command brand loyalty? This one could be tricky to figure out.