Abstract: A portable toilet comprising: (a) a base adapted to support a weight of a user; (b) a seat positionable upon the base and adapted to support a weight of the user and including a hole through which waste may be passed by the user and (c) a waste receptacle permanently attached to the seat.

Abstract: A modular coverage system for covering an area of desired shape and size with the purpose of heating the said area in order to prevent snow accumulation or to melt down accumulated snow or for decoration, protection and comfort, comprising a plurality of generally planar surface units suitable to be laid out adjacent to each other that may be made with different decorative patterns. In snow melting systems electric conducting and heating means are located inside the surface unit. Along the outline of the surface unit recessed docking station means are provided in the areas that are designed to be adjacent to the outline of a neighboring surface unit. Each docking station means comprises electrical connection means and one or more mechanical engagement means. Units are interconnected by removable integral connecting plates with electrical connection means and mechanical engagement means inserted from above and received in the docking station areas.