5 Tips for Writing an Effective Slogan
Give them a rhythm, rhyme, and ring.
A slogan longer than a single word should fulfill at least two of these three criteria: It should have a rhythm, it should rhyme, and it should have a ring to it. Slogans, whether read or heard, should be pleasing to the ear; rhythmic and fluid-sounding slogans are much more recognizable and memorable for later recall. Bonus points for making the slogan into a jingle or song; studies consistently show that words presented in a song are remembered significantly better than words presented in normal speech. Example: "The quilted quicker picker upper." (Bounty)