Every store has its own titles for retail jobs. If you are interested in seeing the (vast!) range of different terminologies, click on the individual company links at the bottom of the page.
If you pop into a store to buy something, then the member of staff who helps you comes under many different titles. For instance, in Next such a worker is called a Sales Consultant, while in Debenhams they are called a Sales Associate.
In the left margin, we list the different titles used for such a customer facing store worker doing a sales job by the different retail outlets covered on this site. It is hoped this will help people doing a Google search for retail jobs.
On his page, simple, one word, searches are useful for finding jobs in many different stores at once. So for finding those customer facing sales jobs, use single word searches like sales and supermarket
Other single terms like warehouse, driver, stockroom, and security are appropriate for wide searches for other kinds of store jobs. Also, simply searching for your town might be enough to narrow the search appropriately.