We compared prices on five basic classroom supplies -- pencils, loose-leaf paper, glue sticks, crayons, and three-ring binders -- at Costco, Walmart, Target, and Amazon. Costco and Walmart were competitive, with each leading on two of the five items. While Amazon had the best price on glue sticks (a pack of six Avery sticks for $2), Target led in none of the categories. It means parents might have to shop around, maybe going to Costco for Dixon Ticonderoga HB #2 pencils, which sell in 96-packs for $15.39, and Crayola crayon, which sell in 12-packs for $9, but to Walmart for a dozen 1-inch Office Impressions binders for $18.60 and 500 sheets of loose-leaf paper for $2.50. Maybe nearly 100 pencils or a dozen binders sounds like overkill, but these bulk buys can be split among everyone in the family, or with a neighbor or friend.