Many magical and non-magical means of travel and
navigation require complete memory of a location. Failure
to store a destination in memory can prove disastrous.
The higher trained one is in the art of location memory,
the more locations he can remember safely. 
Usage: 
  use location memory at remember <location> 
You can get a list of the locations you remember by typing: 
  use location memory at list 
To forget a location: 
  use location memory at forget <location>
  use location memory at forget <location1>, <location2>, ...
To rename a location:
  use location memory at rename <location1> to <location2>