Mnemonic for remembering the cranial nerves:
On,                Olfactory
On,                Optic
On,                Oculomotor
They              Trochlear
Travelled       Trigeminal
And               Abducens
Found           Facial
Voldemort     Vestibulocochlear
Guarding      Glossopharyngeal
Very              Vagus
Ancient         Accessory
Horcruxes     Hypoglossal