Sorry if this has already been mentioned but I noticed when I was checking out yesterday at my local Publix in Florida the computer screen had a message across the bottom about the annual Publix Back to School Celebration. In my store at least it is this Saturday from 11am-3pm. It also stated the first 250 students would receive a free crayola triangular marker.
It might be worth calling your store to see if they are participating.
:july4th7:
My kids love the Publix "parties"--I actually put them on my calendar! There are always lots of great free samples, coupons, and giveaways! Last Halloween they had games for the kids and prizes (really good ones, like bags of cookies at the bakery) for them. The Holiday Fest in November had so much food that I wished I had told my husband to meet me there for supper!