I used to have a macbook air that I would use only ocassionally, and this behavior didn't bother me TOO much. Now that I have a retina MBP that I use as my everyday machine, it's starting to really bug me. I open a PDF and then 10 other documents from last week open up along with it. Every time I restart my computer I get a whole mess of apps opening up at login and cluttering my dock. What was Apple thinking and how do I get rid of it?