So, I was wondering why my mac was so slow and apparently, I was using up to 12GB of Swap on top of my 8GB ram. I only had Mail, Skype, iTunes, Notes, Safari, Numbers, Outlook for Mac, Messages opened. Messages didn't take much real ram but everything got thrown into Swap. This reminds me that I'm using more and more swap under Mountain Lion then I would under Lion. This picture is after I closed Messages and it released a lot of memory. I'm wondering if there is some sort of memory leak? Has anyone else notice this?