Dannyalcatraz said:I used to curse a lot in college, but I don't so much anymore.
I've found that the curse jar works, as does word substitution.
I especially liked word substitution- used to great effect in many movies over the years, most recently A Christmas Story with Davin McGavin. While using archaic or incongruous words (like pop-culture references) works, pure nonsense words worked best (at least for me).
Saying something like "Oh flarginbibble!" when you're frustrated instead of " Oh F***!" still helps you vent, and will tend to lighten up the room, rather than send people into apoplexy over your language. It will be like a game, and over time, it'll become almost second nature. Now I only REALLY cuss when I mean it, and those around me understand the difference.
Of course, someone down in the Bible Belt (where I am) might just mistake your babbling for Speaking in Tongues...
Nonsense words are fun. My favorites are Flibberty-gibbit and Flibberty-flumph as substitutions for the f-word. Other good words are frak, frell, zorking frude, and the like.
Another great way to cuss without really cussing is learning Klingon.