A cleaning cart has a basic body, wherein the lateral extent of the basic body is bounded by an outer circumferential boundary surface or boundary line, and wherein the basic body bears at least one module which is coupleable to the basic body, is configured such that cleaning cart can bear a multiplicity of modules of different size while having a very compact and space-saving design, in that the module is assigned to the basic body in such a positive, frictional and/or non-positive manner preventing tilting that the base region of the module projects at least on one side beyond the boundary surface or boundary line of the basic body.