McDonald's: I'm loving it.
Nike: Just do it.
eBay: eBay's got it, whatever it is.
Burger King: Have it your way.
Aqua Velva: It just feels better with an Aqua Velva man.
What does the pronoun "it" refer to? Sometimes, the referent is specific and identifiable. Other times, it is not, and we need to fill the gap with our own imagination. Can you locate more of these types of slogans? Why does "it" work so effectively as a pronoun choice in advertising?