Abstract: A base and a plurality of containers is described. The base may have a plurality of receptacles, each of the plurality of receptacles having a first dimension. Each of the plurality of containers may correspond to one of the plurality of receptacles. Each container may have a first dimension which is about the same as the first dimension of its corresponding receptacle. The base may have a top surface and each of the plurality of receptacles may be comprised of a plurality of walls, each of which extends upward from the top surface of the base. Each of the plurality of containers may have a lid which can be sealed and unsealed. The plurality of receptacles can be arranged in a plurality of rows and columns. Each of the plurality of containers may have protrusion at its top and a recess at its bottom so that a first container can be stacked on a second container.

Abstract: A base and a plurality of containers is described. The base may have a plurality of receptacles, each of the plurality of receptacles having a first dimension. Each of the plurality of containers may correspond to one of the plurality of receptacles. Each container may have a first dimension which is about the same as the first dimension of its corresponding receptacle. The base may have a top surface and each of the plurality of receptacles may be comprised of a plurality of walls, each of which extends upward from the top surface of the base. Each of the plurality of containers may have a lid which can be sealed and unsealed. The plurality of receptacles can be arranged in a plurality of rows and columns. Each of the plurality of containers may have protrusion at its top and a recess at its bottom so that a first container can be stacked on a second container.