Do you sometimes click around your AdWords account just to see if anything funny is going on?  A few months ago Google introduced custom alerts designed to notify you when your budget reaches a certain point or your CTR is tanking or any other area of concern.  To access this feature, navigate to the Keywords tab, on the bar below the graph click More actions, click Create a custom alert, then set the parameters of your alert.  To see your alerts, check the Messages section at the top of your account, or set up e-mail notification.  Unfortunately right now the custom alerts are not an option for MCC accounts, but they’ll really be a time saver for those managing individual accounts. For more info you can check out the Inside AdWords blog here: http://adwords.blogspot.com/2009/08/new-interface-thursdays-keep-tabs-on.html