As one of its daily deals, AmazonLocal offers a $40 Incase Credit for $20. That's among the best Incase credit offers we've seen in recent months. (We saw a $50 credit for $25 in December.) The credit can't be used towards shipping, which starts around $3. Incase sells cases for the iPhone, iPad, iPod, MacBook, and more. Deal ends February 1 and the voucher expires July 30.