Show User ~/Library in OS X Lion

Launch Terminal from Spotlight or Launchpad > Utilities, and enter the following command to show the directory:
``

chflags nohidden ~/Library/

The users Library folder will immediately become visible. Reverting this back to the standard Lion setting is simple too:

Hide User ~/Library in OS X Lion (default setting)

This returns to the default setting of hiding the user Library directory:
``

chflags hidden ~/Library

Changes take effect immediately again, and Library becomes invisible to the user.