Change the name of Kroger to Kroger's so people will stop making fun of me when I say "I'm going to Kroger's".

I would like the have the official name of the Kroger Grocery store renamed to "Kroger's". Each time I say "I'm going to Kroger's", my friends all make fun of my grammar and say that it isn't a possessive word. If the name was changed, I could throw it back in their face that I was correct.