I'm a huge fan of the salon-style wall arrangement. Its the perfect way to add a shot of eclectic interest, and doesn't have to feel like your grandmother's untouchable sitting room! Here are some beautiful examples.
The best part about a salon style arrangement is the freedom you have to mix photographs, paintings, drawings, handwritten notes, and objects - and it can change anytime. For this style, the wilder the better! I love that.
Do you have any salon style walls? What is the focus point?