Changing the Rules - Is it Grounds For Murder?

I read a blog posting at Writing and Publishing News telling about the new rules for spaces after sentences. When I was in school, in ancient days, the rule was to use two spaces after a sentence. Now I'm reading that I should only use one.

I'm trying it now. It's not easy to do! It's like learning to walk and talk all over again! I keep having to backspace to see if I actually put just one space between the sentences.

I'm curious. Has anyone started using this practice in their writing? If so, are you having as much difficulty as I am? Can't editors just wait for all of us old folks to die off before making the new rules permanent?

Feedback please! And please try to type using only one space between the sentences.