ScribeFire - a free plug-in for FireFox browser

Extremely simple to add to FireFox
Extremely simple to use.
Publishing this to my old blog that I haven't used in 2 years.

Type using WordPad/TextEdit like editor;
re-read for accuracy;
fix red-underlined spelling errors;
select which blogs to publish to;
push "Publish" button.

Danged simple.