This might sound corny but I suggest watching old movies, movies of the 1950's and1960's. The styling in older movies wasn't so forced, it was more natural, simple, and elegant, and for example the clothing of Barefoot in the Park is a good one to watch to get ideas! Your shoot doesn't have to be in a 1950's and 1960's theme, but it is a good thing to notice how small details really DO speak and apply them to your shoots, -could be a bikini shoot or a shoot involving gowns...but don't over do your styling.
Jane Fonda wears her outfits in Barefoot in the Park with class and it is sexy too!
Also check out these titles to get inspired:
To Catch a Thief with Grace Kelly
Guys and Dolls with Vivian Lane
The Misfits with Marilyn Monroe