As every mother knows, girls are social creatures. As your daughter gets older and her room becomes less of a play area and more of a place for entertaining friends, she may benefit from a little room rezoning.
Curtains are an excellent way to define different living areas within a room. Use them to transform an alcove into an office or create a unique sleeping space that your daughter can close off while she has company.
IKEA is an excellent resource for these types of ideas, and their wall and ceiling-mounted curtain tracks are very affordable and easy to install.