No doubt about it — it’s definitely Christmas time in Heart & Home. The cozy home-decor store on Mill Street in Grass Valley is adorned with Christmas tree ornaments, holiday wreaths, festive dolls, inspirational signs and much more. Christmas music enhances the colorful shop, as does the sweet cinnamon scent of candles. “Basically this store is filled with everything I love,” said Stacy Hereford, who owns the business with her husband, Mark. “I grew up in Bucks County, Pennsylvania, where there are small Amish communities. That has definitely influenced my choices in the store, but it also has a Nevada …