I so wished I could've called you for this advice last week, when someone was presenting their final project in my Typography class and we all had an argument about the plural of "Bush." As in George W. Finally someone googled "bush plural" and found the answer at Get It Write.com.

I'm glad to actually see the rule, though!

Next up: which is correct? Using "women" or "woman" as an adjective for an occupation, or using "female"? I grind my teeth every time I hear "woman cop" or "woman lawyer," but it seems to be perfectly acceptable these days.