I tend to return a hashref, where each element in the hash contains a reference to something else.   (I choose to do so because that way each element is named, and that seems to work better as the code inevitably continues to expand.)   But the alternative of returning a list is a good one, too.   The each() function, for example, does this.

TMTOWTDI.   But, no matter what WTDI you eventually choose, make it abundantly clear, well documented, and maintainable.