GSI via Amazon offers Amazon Prime members the OtterBox Defender Case for Apple iPad, model no. APL2-iPAD1-20-C4OTR for $14.16 with free shipping. (Non-members can spend $25 or more to qualify for free shipping; otherwise, shipping costs $9.29.) That's tied with our mention from three weeks ago and the lowest total price we could find by $4. The multi-layer case protects from dust, scratches, and bumps.

Orders placed by December 21 at 11 pm ET using Amazon Prime are guaranteed to arrive by Christmas. (Non-members need to order by December 19.)

Amazon Prime membership is $79 per year; however, Prime is free for college students for six months, and free for parents and caregivers for three months. (Note that currently there's a waitlist for Amazon Mom.)