Long emails are no fun to read or write. Brief is a Chrome extension that adds a word counter to the compose and reply views in Gmail and disables sending if an email is longer than 125 words. Need to send something longer than 125 words? Just triple-click the send button!
Don't Hit Publish will tell you if your blog post is a complete pile of crap or not. And it'll show you what to do about it if it sucks.