Two more uses on the oasis in the night:

1.  The 7-11 is the basis for any directions given to english speakers.  because we cannot read the street signs, directions often begin from the nearest 7-11.

2. It is a quasi-financial institution. It seems the currency exchange desk at LAX  gave us outdated $NT1000.  We have to exchange them at the 7-11 by 1 October.