My normal boilerplate is:
in reply to Common uses of "use"
The first two pragmas because the help me by catching my typos (I am a two-fingered typist, and both fingers are on my left hand) and brain mis-firings. D::D is because I always need it in debugging something and it's a nuisance to remember whether I have already used it or not.
In the past three months I have started adding use Class::DBI to the list since I am doing a contract that uses an enormous set of Oracle database tables, and every time I turn around I find another table that needs its Object.
I Go Back to Sleep, Now.