Designer cosmetics and fragrances at competitive prices:
http://www.douglas.de/

For the culturally discerning customer try this virtual version of a 3 storey department store in Berlin that sells exclusively books, audio CDs and DVDs:
www.dussmann.de

There are many sites which allow you to search for restaurants by location and type.
See which one you find easiest to use:
http://www.schlemmer-atlas.de
http://www.best-restaurants.de
http://www.gastro.de