Wire cooling racks are a necessity for setting just-out-of-the-oven hot baking pans to cool. Hot pans placed on a flat surface can cause the baked item to become soggy, due to condensation that forms under the pan. Cooling racks are also helpful to use when drizzling icing or chocolate on top of cookies, wire cooling rack rectanglecakes, or pastries as the icing drips thru the rack instead of forming a puddle.
Cooling racks are sold in various sizes, including round, square, and rectangular shapes. They should have feet of at least ½ inch that raise them above the counter for good air circulation. Have at least one rack that is large enough to hold several batches of cookies. Shop here for wire cooling racks.