Many things! Including: my bed sheets, what bowls I use for cereal as apposed to soup/mac and cheese, what direction certain things I have hanging on my walls are facing like my rifles and flags. Also any timers/alarms can only be in increments of 10. Computer icons have to be arranged according to similarities, CDs by music type, Games by Game type. No one is allowed to touch any of my war relics and antiques with out asking first, I freak out else wise. My lock boxes are always always on the left side of my closet, and I can not have a mirror in my room. I hope that answers your question.
Have you ever hunted/gone fishing and eaten what you have cough/killed?