Abstract: The mat of the present invention has a flexible sheet having a raised peripheral rim and a central opening. A first receptacle has a periphery about an upwardly extending opening which is joined about the central opening. A removable receptacle is disposed in and removable from the first receptacle. The flexible sheet is foldable for storage within the first receptacle. The first receptacle may be closed by the removable receptacle. The removable receptacle enables the solid matter and liquids collecting on the flexible sheet to be carried away for disposal.