em dash

Do you ever see those dashes–with no spaces between the sentence parts? It is an "em dash." I thought it would be interesting to use some of those to spice up my writing. I formal writing it is best to use the em dash very sparingly, though you could use it once per paper–which I would suggest. But in informal writing you can do whatever you want–of course. It works really well when you see that you have too many semi-colons–just use an em dash. Have fun–here.