Many of my clients have OOTB workflows enabled on their SharePoint farm(s). This will allow users to create and manage their own, simple workflows. However, one problem I have encountered is the support for those workflows tend to end with the creation of the workflow.
One issue with user-implemented/supported workflows is notification when workflows fail. One of my client's requested a notification of failing workflows. My initial thought was to create another workflow to monitor and send notifications when user workflows entered into an error state. Then, I remembered SharePoint offers OOTB alerting..so, I decided to check with the SharePoint community to see if there were any good, ootb solutions for notifying upon failure. I eventually came across Dave Sampson's post regarding his solution and voila! Simple, yet very effective solution! Check out his solution located on his blog http://dave-sampson.blogspot.com/2012/06/simple-sharepoint-2010-workflow-error.html