Magento important Code Snippet

Only echo on your ip:

if($_SERVER['REMOTE_ADDR']=='yourip')
{
	//do your echo stuff
}

Detecting Home page:

$routeName = Mage::app()->getRequest()->getRouteName();
$identifier = Mage::getSingleton('cms/page')->getIdentifier();
if($routeName == 'cms' && $identifier == 'home') 
{
  //do your stuff only needed in home page.
}

Adding CMS Static Page in any pthml page

echo $this->getLayout()->createBlock('cms/block')->setBlockId('footer_banner')->toHTML();