GetGlobalContentNode.cs

public IPublishedContent GetGlobalContentNode()
{
    return (IPublishedContent)ApplicationContext.Current.ApplicationCache.RuntimeCache.GetCacheItem("Application.BusinessLogic.Services.GetGlobalContentNode", () => {
        var settingsNode = GetNonPageContentNode();

        //Get the child folder node - Configuration Folder
        var configFolder = settingsNode.Children.SingleOrDefault(x => x.DocumentTypeAlias == Constants.DocTypes.SiteConfigurationFolder);

        if (configFolder == null) { return null; }

        //Try & get the child External Services node
        globalContentNode = configFolder.Children.SingleOrDefault(x => x.DocumentTypeAlias == Constants.DocTypes.GlobalContent);

        return globalContentNode;
    });
}