I can be a little obsessive/compulsive, although I like the term "quirks" better.
Anyway, I have a few.
I like my soup cans in alphabetical order. Actually I like everything in alphabetical order and it throws me off if they're not.
I too like silence, or very very quiet music, when I am working or driving and need some peace. Other times I can put on the music and enjoy it, but when I am looking for peace after a busy day, for example, I need silence.
Abrupt change in plans throws me. I can be quite spontaneous, but if something is planned I need to to go forward as planned, when planned and where planned.
Sheesh, putting this in writing is almost scary