So I've been having lots of fun (read: horrible pain) this week thanks to some quirks of Drupal that only really present themselves when you are looping through, loading, saving and manipulating nodes quickly. The scenario for this sort of thing is normally (yup, you've probably guessed it) importing.

This is a quick Drupal 6.x, Views 2.x blog tutorial about creating the classic DMOZ-style sub-categories plus node listings above/below. Something Drupal does not do out of the box, but is fairly easily achieved.

(Thanks to longwave in #drupaluk on IRC for suggesting this approach.)