Fredericks of Hollywood 50% off Sitewide: Lingerie from $5, Panties from $2, Bras from $7, Shoes from $3.50, Corsets from $10, Dresses from $15 + Free Shipping (expired)

http://fredericks.com/ In store through Oct 14. They don't say how long the online sale lasts.

Free shipping with code "FOHSURVEY" (thanks brian_guy)

If you'd rather get an additional 30% off regular-priced items, but no free shipping, "FALL30" stacks with the 50% off sale (thanks Blazing0319)

There's no official clearance sale going on, but if you go into each category and click "New Markdowns" you can find the clearanced stuff:

• Lingerie [fredericks.com] from $5
• Panties [fredericks.com] form $2
• Bras [fredericks.com] from $7
• Shoes [fredericks.com] from $3.49
• Corsets [fredericks.com] from $10
• Dresses [fredericks.com] from $15

Also, if you click "View All" in any category and sort from lowest priced, certain styles will have marked-down colors (which don't show up in New Markdowns)