There's lots of chatter about whether millennials prefer to live in the suburbs or the city, but no matter where this demographic choses to reside, it's undeniable that they have unique living needs. Millennials love high-tech features, bold design finishes, and adaptable designs that evolve with them over time. And, since the majority of millennials are in their 20s — hence smaller salaries and families — they tend to live in smaller spaces. For decorating advice tailored to this group of dwellers' needs, we turned to celebrity designer Bobby Berk. Bobby specializes in millennial design and says interior design for millennials is all about smart, original, and creative designs that are both customizable and functional. In this light, he has nine tips that will help millennials optimize even the smallest of spaces.