Charlotte Russe 30-50% off
The sale includes so many items you'll be dizzy if you don't sort the results. You can search by size, occasion, trend, color, or price. I've never heard of a site that lets you search by trend, including these four that the Charlotte Russe site identifies: goddess, little house, mexicali, or tribal. Sounds like Charlotte Russe is catering to its fashion-forward customers! I miss being able to search by clothing item, however.
The under $10 category includes lots of T-shirts, camis, tank tops, and a few pairs of leggings.
Caveats: sale applies only to items on hand, no back orders. The discount is automatically taken off at checkout.