Simple memorization. That one's even easier, since there are fewer items, and they're grouped sequentially:
I: Cribiform plate
II: Optic foramen
III, IV, V1, VI: Superior orbital fissure
V2: Foramen rotundum
V3: Foramen ovale
VII, VIII: Internal auditory meatus
IX, X, XI: Jugular foramen
XII: Hypoglossal canal.
Basically, you're just proceeding posteroinferiorly along the cranial cavity as you go through the nerves. 7 items is right at the limit of what the average Joe can easily memorize; I bet if you put some effort into it, you'll be fine.