Who's going to get the last one?

Ok, we now have three more answers:

E = Zales
K = Burger King
W = Mountain Dew

So what is the A??

Go figure, no wonder I didn't get Burger King or Mountain Dew. I don't eat fast food, and I don't drink Mountain Dew, especially b/c of LD-40 (is it LD? Not sure. Anyway, it's something supposed to marginally affect impotency in men or some such bs. I just always thought it was weird drinking something that looked like highlighter fluid.)