I know from a quick browse Walmart has the composition books 25 cents and 2 glue sticks are the same if I recall right. Had several folder slections pretty cheap. But I didn't look good since I don't have our list yet. 22n hopefully!
I do like their zipper slider bags in walmart brand they are pretty sturdy and reliable if your schools want theses. I know the school my dd went to in Florida wanted them. But had never seen it here.