Here is a list comparing school supplies at Walmart and Target that I found handy! I found it at Passionate Penny Pincher. She has coupons, store (and restaurant) deals and ads that are updated pretty frequently. I LOVE it!
You can download a PDF copy of the list to print off on her website from here.
Here is the school supply list for our class this year. Mrs. Lowe's list is identical to this one and the only difference in Mrs. Nix's list is needing a nap mat for her class. Hope this helps!