layer up!

layering is definitely not just piling up clothes. and its definitely not just for winter when the weather is cold. layering to me, is not related to the climate. in summer, there are also ways to layer. layering gives interest to your overall outfit.
why do some people look so plain? the most obvious reason is becos they do not accessorize. they only wear one top, and one bottom. putting on a necklace round your neck is also considered layering (at least to me), becos it seems to create another layer on top of your first layer (which is the blouse you are wearing). putting on a belt is also creating layering. these are the most basic layerings.
then comes the secondary layering which is created by other pieces of clothes. sometimes it can be as simple as wearing a longer spag top, and then another shorter thin tank top over it, revealing a little of the spag top. another good eg. would be a tank top under an off-shoulder loose blouse. for bottoms, the most basic is definitely leggings under short skirt, or jeans under dresses. the japanese are great at layerings! they layer all year round. bringing more dimension to the overall figure.
the final layer could be your jacket, or cardigan or scarfs!
layering is also about the mixing of different textures and patterns. usually you don't just layer with clothes of the same fabric, instead have fun mixing knit with cotton, stripes with patterns. experiment with your clothes!
here's a page off vogue sep for you.

well, the above is just some of my thoughts about layering.