We have two 2012 MBA's running with a new Time Capsule running as both router and backup machine. I only use my MBA periodically for anything other than email, web surfing, messages, etc., and thus don't need to be on a hourly backup schedule. I had read (and bookmarked) a discussion on using Time Capsule as backup device that suggested a downloadable app that would override Time Machine scheduling and allow you to set up your own schedule for backups on Time Capsule but I can't find it now. Anyone have suggestions for a good app to accomplish this? I know my other alternative is to simply turn Time Machine on/off but would like a way to schedule periodic long-interval backups.