Method to grab URL hash in Twig or craft.request? Is there a method or recommended way of grabbing URL hash parameters with Twig? 

For example, if my URL is http://mysite.com/my-page#hash, is there a way to grab the hash?
This isn't possible because the #hash-part isn't even send to the server. See this question on StackOverflow: Can PHP read the hash portion of the URL?

But if you use ?hash=something instead, these functions will help you: getParam() and getQuery()