MANILA, Philippines – Brothers Mark and Carlo are chips off the old block. With their parents’ core business being leasing out warehouses and buildings they own, the brothers said they “tweaked” the concept and came up with the idea of breaking down some of the vacant spaces in their family’s buildings into small storage spaces – enough for a condominium unit owner to stash extra pieces of furniture or an entrepreneur to store documents or goods. Mark and Carlo said they believe their parents, Celina Martinez-Coronel and husband Edgar Coronel, would be proud of what they have accomplished. “Specially now that it’s doing well,” Mark added.