Social Media No no's

I've been thinking lately of the down side of social media sites like Twitter and Facebook, and how they should not be used. For the most part I love using these using these sites and really enjoy seeing what is happening in the lives of people I both know and don't know. I also feel the pros of this technology. outweigh the cons. But I have also recently seen these sites used in unhealthy ways. So I've adopted a few rules I feel are proper etiquette for my online persona.
Rule # 1: Never engage in a personal dispute using social media. No one needs to see you have an online fight.
Rule # 2: Don't combine your account with your significant other. Everyone on the receiving is always wondering which of the two people composed the post. (e.g. Bob & Susie Smith: great time shopping with my girlfriend today).
Rule # 3: Do post things that are either interesting, monumental, witty, cool, or informative.
By the way my profile has recently been posting items that I didn't post. Not sure if I should have a rule about letting the wife post for me or not. I must be big time now, to have people do my posting for me. Or maybe I'm just to busy following the latest celeb tweets.

[Posted with iBlogger from my iPod touch]