Class::Autouse allows you to specify a class the will only load when a
method of that class is called.  For large classes that might not be
used during the running of a program, such as Date::Manip, this can save
you large amounts of memory, and decrease the script load time.

WWW: http://search.cpan.org/dist/Class-Autouse/

-- Sergey Skvortsov
skv@FreeBSD.org