in reply to How to write a perl script to work on many OS(s)
As well as File::Spec you might also want to take a look at Path::Class. It's not core, but has a much saner API in my opinion.
An Englishman in New York
An American Werewolf in London
An American in Paris
The Innocents Abroad
An Idiot Abroad
Robinson Crusoe on Mars
A Connecticut_Yankee in King Arthur's Court
There and Back Again
Travels into Several Remote Nations of the World
Results (82 votes). Check out past polls.