Cleanliness. I spend my life in the shower with a scrub brush. (I work in a hospital and people have lots of GERMS). I love the smell of soap, shampoo, clorox,lysol,lavender,etc. (I used to grow bacteria cultures as a part time job, it made me paranoid).
Libraries. I am obsessed with libraries, books, and the aquisition of knowledge. My favourite library is on the Benjamin Franklin Parkway in Philadelphia. Its this enormous three story building made out of marble, with historic texts and all sorts of goodies.