Abstract: A step stool defining a U-shaped opening in a rear portion of same with at least one elevated step in front of the U-shaped opening, whereby the stool may be received about a portion of the base of a toilet bowl. Threaded bolts are received in threaded openings through side walls of the stool to be tightened against the sides of the toilet bowl to stabilize the stool thereat. A generally U-shaped insert is also provided which may be received and held within the U-shaped openings of the stool to convert the stool to a conventional step stool.