Update: they have changed this deal so you cannot use your $5 credit on the Overstock deal. You will still get a $5 credit for future use if you sign up using the link in this post!
Then, click on "Today's Deal" at the top and you'll see the Overstock deal.
Get started here!
Even if you're not new to Tippr, $10 for a $20 voucher to Overstock is a great deal!
(Thanks, Raining Hot Coupons!)