1000 reasons to buy damage done today

765 - 'cause that's why I said "Last time I checked" though I doubt any of the ones you said would change my point of view :p
 
I thought that was only if the final s is there because you made the word plural, such as:

the dogs' ears (don't ask)

Is it always there is an s at the end of the word? Yes, I know this isn't a grammar forum.