Ah if there only was something so magic! I think it's a pretty much mental thing so perhaps some erotic fantasties? Try books like Nancy Friday's My Secret Garden and http://www.orgasmarmy.com/books/black-lace-book-of-womens-sexual-fantasies/review/6347.aspx
Lube will definitely help if you need some extra moisture. Vibrating things will help most probably- but there are so many to choose from, so you'll need to give me some guidance on what appeals and what doesn't. Hope that helps!