How would you go about measuring consumer satisfaction among purchasers of the following? What questions would you

Question:

How would you go about measuring consumer satisfaction among purchasers of the following? What questions would you ask, what additional information would you collect, and why? How could this information be used for evaluating and planning marketing programs?
a) Cell phone service
b) www.Walmart.com
c) Car insurance
d) Six Flags theme parks
e) Health-related services
f) Exercise bike