A toilet overflow could be due to a blockage, a sewer backup or septic issues. If the issue is a clog, most toilet clogs can be dealt with by using a plunger or a closet auger. Correctly using a plunger can easily dislodge the “soft” clog without making a mess of the bathroom. A firm up and down motion will cause the water in the trap of the toilet to move up and down and dislodge the clog in most cases. If not, a closet auger will often take care of it. Of course, if these don’t work, the use of a longer “snake” will be necessary.