Retailer Celebrates One of its Busiest Seasons with Halloween Costumes, Fall Varsity Line Toys, Treats, In-Store Events and More PHOENIX, AZ, 2017-Sep-27 — /EPR Retail News/ — Tomorrow (Sept. 22, 2017) officially marks the first day of Autumn, and to help usher in the season of ghosts and goblins and pumpkin spice-everything, PetSmart, the leading pet specialty…