It is good to remember this not only as control of the physical tongue, but control of the virtual tongue (i.e., the keyboard) as well.
Dear Holy Spirit, My God. Teach me to speak wisely.
Let me avoid useless thoughts and useless conversations. Help me to speak often for You. Grant that my words may never hurt men of goodwill. May My words always bring consolation to those in sorrow and guidance to those in need. Take my lips and make them Yours. Take possession of my mind and make it an instrument of Your goodness and a channel of truth. I hope to become a man of silence, who prefers to talk to God then to men. In my human conversation, may I always bring them closer to You and You closer to them. I ask this through Christ Our Lord. Amen
Our Father* . . . Hail Mary* . . . Glory Be*