in reply to Ode for the CORE:: package
I haven't seen this documented anywhere, but a double colon at the end of a word is removed and makes a bareword that works even under strict, only it warns that "Bareword "%s" refers to nonexistent package".
DejaVu Sans Mono
Droid Sans Mono
Envy Code R
Source Code Pro
The default, whatever it is
Results (328 votes). Check out past polls.