I have to admit if I was finding:

 use Foo::Dates;
 use Foo::Customer;
 use Foo::Order;
 use Foo::Company;
 use Foo::Company::SalesReps;
 use Foo::Extremely::Long::Package::Name;
[download]

at the top of all my files I would be saying to myself "Gosh. We seem to have a lot of very tight coupling and duplicate code here. Probably need to do some refactoring" :-)