Photo from Rent the Runway

Want designer clothes at bargain basement prices? I've found five of the best deals on the web! All from sample sale sites -- must sign up to be a member.

1. Catherine Malandrino
Rent the Runway offers this amazing Malandrino dress (at left) for $75. It retails for $545. Pinch me now! Register to rent it at Renttherunway.com.

2. Calvin Klein Collection
Visit the web's best guilty pleasure, Gilt Groupe, and get the look from Calvin Klein for way less. Sale ends 3/19 at midnight. 

3. Samplesale.com
It's one of the newer sites that offer steeply discounted prices from some of my favorite designers. Register at: Samplesale.com.

4. Betsey Johnson
Sale starts on Friday, March 19, at 10 a.m. on Editorscloset.com.

5. Oh la la Cheri
Ideeli, celebrating one million registered users, is offering nearly 50 percent off intimates from Oh la la Cheri. Bras and undies range from $6 to $12. Visit Ideeli.com.

Are you a member of these sample sale sites? If not, are you signing up?