Make category and product page templates to 1 column from the default of 2 columns
<?xml version="1.0" encoding="UTF-8"?>
<!--
/**
* local.xml
* Local layout modifications for our local theme
* @category design
* @package formulx
* @author_url http://www.localhost.com
*/
-->
<layout version="0.1.0">
<default translate="label" module="page">
// other xml entries
</default>
<!-- must be outside default tags -->
<!-- change page template for categories from default 2 col to 1 col-->
<catalog_category_default>
<reference name="root">
<action method="setTemplate">
<template>page/1column.phtml</template>
</action>
</reference>
</catalog_category_default>
<catalog_product_view>
<reference name="root">
<action method="setTemplate">
<template>page/1column.phtml</template>
</action>
</reference>
</catalog_product_view>
</layout>