Added Rule 5; Harden the fuck up, or why JQuery isn't always the answer.

Added rule 5, which should serve as a reminder to always keep code lean and not add libraries and frameworks without first thinking of the implications of them on the size of the codebase.

In other words, to grab at a specific example; do you really need JQuery, or could you use some other micro-libraries which would do the same thing? ZeptoJS instead of JQuery even? 

http://www.sitepoint.com/do-you-really-need-jquery/
http://youmightnotneedjquery.com/

And finally, while I was looking for some articles about not needing JQuery, a response to anybody going "Well okay, what micro-libraries do we use instead?";

http://microjs.com/#