I've been adding this to my pages:
pagewithinclude.cfm
<cfinclude template = "_pagename.cfm">
_pagename.cfm
<cfif Not IsDefined("variables.included_pagename")>
<cfparam name = "variables.included_pagename" default = "1">
rest of page
</cfif>
Is there a better way in CF? Something similar to PHP's include_once?