For my Geography alevel, I did a survey of shoppers visiting my local Waitrose store, I found out where they came from to the store(lived), how often they visited, how many members of the family, their 'rough; age range etc etc.
I did the survey over 1 week, I went and did the surveys 3 times a day morning, afterneoon and evening, for 30 mins each and I also took traffic checks outside in the carpark. Noted number occupants,registration letter (show age) and model.
I was then able to show how many people visited, what times were peak times, which times certain shoppers came in, where people came from to shop there - showed local map and marked on where people came from, formed 360 map/graph to show in which direction most shoppers lived/came from ie those who had good road networks were regular shoppers and came more often.