Magento Layout XML Snippets

magento-layout.xml

<!-- Adding JS or CSS -->
<reference name="head">
    <!-- Using add Method -->
    <action method="addCss"><stylesheet>css/styles.css</stylesheet></action>
    <action method="addJs"><script>prototype/prototype.js</script></action>
    <!-- Using addItem Method -->
    <action method="addItem"><type>skin_css</type><name>css/styles-ie.css</name><params/><if>lt IE 8</if></action>
    <action method="addItem"><type>skin_js</type><name>js/ie6.js</name><params/><if>lt IE 7</if></action>
</reference> 

<!-- Adding External JS or CSS to your Theme -->
<reference name="head">
    <block type="core/text" name="jquery">
        <action method="setText"><text><![CDATA[<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js"></script>]]></text></action>
    </block>
    <block type="core/text" name="mybuyscsscode">
          <action method="setText"><text><![CDATA[<link href="//t.p.mybuys.com/css/mbstyles.css" rel="stylesheet" type="text/css" id="mybuysstyles">]]></text></action>
     </block>
</reference> 

<!-- Setting the Robots Meta Tag per page (Via CMS) -->
<reference name="head">
    <action method="setRobots"><value>NOINDEX,FOLLOW</value></action>
</reference>