Okay, I've been using cloudHQ for few days now and it is flat out epic (plus it saves me a boatload of time on the regular). I use a handful of cloud services (Google Drive, Dropbox and Evernote just to name a few) and I dreaded the task of determining where I had saved a file, but this is no longer an issue.
All in all, give CloudHQ a shot and see if they can streamline your life like they did for me!