When the opportunity to move into a better location arose, local Native American arts and crafts specialty store The Trading Post jumped on it. The Trading Post moved from Hughes Road to 101 Bank St. in Grass Valley, closer to the prominent downtown area. “It was one of those issues of expand or die,” said Susan Gleason, owner of The Trading Post, who runs the store with her sister, Janet Pedersen. “We have Native American goods, a lot made by local artisans, both me, my sister and our family, as well as other people, and we have smudging and herbs, …