|By placing it into the scalar slot associated of the typeglob of the functions name.
That's not so good - you run the risk of clobbering something. Doing an implicit 'local' might help, but what do you do with lvalue-able anonymous subs?
*^_ is a much better idea, imho. And, I'd just have it go to @^_ straight off. That way, it would act as a standard assignment does. $foo = 1..3; anyone?
(FYI - it's mnemonic, not pnemonic ... you want memory, not the plague.)
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