According to the MLA standards in use by my university and all the english classes in it, I'm supposed to put one space after a comma, and two spaces after a period. I've been in the habit of doing that since grade 8 anyhow. My grade 8 teacher taught me how to do that. Gotta love ingrained habits.

I have always used single spaces in my sentences, I haven't been taught any other way. There a few people that I know that have used double spacing in their sentences, but they tend to be of an "older generation".

I've never heard of two spaces. I've always been taught to use a single space. It's really odd hearing about this.


Edit: Found a link on it, http://desktoppub.about.com/cs/types...etwospaces.htm