What to wear?? That is the question I hear most often. My standard tips are coordinate outfits but don’t have them match, use textures and layers to create interest and dimension in your images, and remember accessories. The other factor to consider, especially for family photos, is where you plan to display the images. Choose a color palette that will compliment the room colors. Classic clothing contributes to timeless images, where trendy clothing tends to date the images. That said, most people still prefer the more trendy clothing.
Below you will find sample color palettes and clothing choices. This is certainly not an exhaustive list, but hopefully it will help get your creative juices flowing.