If you use PayPal at Overstock.com, you'll get $20 off $100:

"Special Offer Terms and Conditions
PAYPAL CHECKOUT DISCOUNT FOR
OVERSTOCK
TERMS AND CONDITIONS
Receive $20 off on purchases of $100 or more (excluding tax and shipping) when checking out with Paypal ("Offer"). This Offer applies to transactions at Overstock.com: Online Shopping - Bedding, Furniture, Electronics, Jewelry, Clothing & more when you use PayPal as the payment method. Offer begins June 17, 2009. To receive this Offer, you must use a U.S. PayPal account in good standing and complete a qualifying purchase. The maximum discount per PayPal account is limited to $20 USD. The discount will be applied immediately at checkout.

The following transactions are excluded from this offer: PayPal Mobile transactions, PayPal Plug-In transactions (formerly named: Virtual Debit Card), gift certificate payments, PayPal Debit Card payments, payments made when you are not logged into your PayPal account, and PayPal Plus Credit Card/ eBay MasterCard payments not made through your PayPal account. This offer applies to U.S. orders only and excludes orders from "Auctions". This promotion cannot be combined with any other offer or coupon including the Club O 5% discount. Where applicable, Club O members will receive the greater of the discounts offered. If the payment is refunded or cancelled at any time, you are not eligible for the offer. PayPal and/or Overstock reserve the right to cancel, suspend, terminate or modify part or this entire Offer at any time without notice, for any reason in their sole discretion. This Offer cannot be resold or transferred."

www.overstock.com

I was just coming to post this - Thanks, OP!

BTW - you don't have to have any $$$ in your PP account, you can use a CC that you have attached to the account.

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Mary

Thanks so much for sharing this offer. This was the day to buy a second portable dvd player for the other little...less squabbles, and enough left over for a couple extra dvds. Yay! For some unknown reason, the first time I got to checkout (with PayPal), the 20% discount did not appear. I put the items into save-for-later, emptied the shopping cart and started all over again. The second time it went through with no problem; the discount showed up in red.

Thank you! I needed to buy a bunch of baby-related stuff for an upcoming trip...it came out to just a little more than $100, but with the coupon, it came to a little less than $100!

does anyone know if this is still valid and what the code is?