Simple-Ton is a magazine that only appears in the episode "You Don't Know Sponge." It apparently has a ton of simple things to do. It contains a "How well do you know your best friend?" quiz. It is SpongeBob and Patrick's favorite magazine. The best friend quiz has questions like, "Is your friend left or right handed?" and "What is your friend's favorite color?"
The magazine has a green background with a gray fish on it giving a thumbs up. Above the fish, it says "Simple-Ton" written in yellow and "A Ton of Simple Things to Do" written in dark green. It may also mean that the magazine is for "simpletons," one of the many names Squidward calls SpongeBob and Patrick. It contains quizzes like, for example, a friendship test which SpongeBob and Patrick took, and a game where the reader makes their favorite noise.
The name of the magazine is an obvious play on the word "simpleton," which refers to a gullible, or foolish individual.