A while ago, the former tags list-of-figures and list-of-tables were merged with table-of-contents (and kept as synomyms). Caramdir's reasoning for this was that "their implementations are pretty similar and questions and solutions applying to one of them typically apply to the others as well".
In the same spirit, I'd like to discuss two potential merging/synonym measures:
widows and orphans should be combined into widows-orphans. (The TeXniques for controlling widows and orphans are the same, or at least for the most part if you consider tinkering with
\Needspaceas a separate way to control orphans.)