I am also very weird about the number of things I have. I don't like to only have 1 of a lot of things. I will often times buy an extra something for no reason other than I want 2. Or if I get a 3rd, I have to have a fourth. I don't like having odd numbers of things... unless it is 1. If I have an odd number of something I am collecting it will irritate me. My favorite number is 35. It bothers me that it is an odd number, but I justify it being my favorite number because both numbers surround "4" and there average is "4" and combined they are "8".