This story is based on the title of the Les Paul and Mary Ford number one song from 1953, "I'm Sittin' on Top of the World".
This feature was a reprint compilation of six newspaper strip panels from the syndicated "Sparks of Life". The panels are headed: Favorite Day-Dreams; Folks We Have Envied; Jobs We'd Love; Extinct Species; The Good Old Days; Down Memory Lane. These are not the same panels used in The Purple Claw (Toby, 1953 series) #3 (May 1953), which were reprinted in Tales of Horror (Toby, 1953 series) #11 (June 1954).