How many ss does it take to change a lightbulb?

[ritaxis]

[Poll #1088629]

Comments

[janetmk.livejournal.com]

The usage I sort of learned and what Fowler says is to use the 's in one and two syllable names and in multi-syllable names accented on the next to last syllable. Though he says it's customary to omit the s if the final syllable is pronounced "iz" and in ancient classical names.