For tech-savvy fashionistas, ShopStyle is the place to be. And it's free!
ShopStyle allows you to hunt and browse for clothes and accessories on the go and it's a great comparison tool too. If you find something you like but think it might be cheaper elsewhere, just look it up on ShopStyle.
You can set a price limit too, which is handy, and when you find that perfect item, just click on the link to the website and you can buy it!