Save A Lot opened its second location in the Save A Lot y Mas format in St. Louis on Wednesday, according to an emailed announcement. Save A Lot opened its second location in the Save A Lot y Mas format in St. Louis on Wednesday, according to an emailed announcement. Save A Lot opened its second location in the Save A Lot y Mas format in St. Louis on Wednesday, according to an emailed announcement. Save A Lot opened its second location in the Save A Lot y Mas format in St. Louis on Wednesday, according to an emailed announcement. Save A Lot opened its second location in the Save A Lot y Mas format in St. Louis on Wednesday, according to an emailed announcement.