Get $20 off your $100+ purchases at eBay: WD 4TB My Book Desktop Hard Drive $90 shipped (Reg. $110), more

You can get $20 off your $100+ purchases at eBay with the codes CMADNESS20 or CMADNESS10 used when you checkout with Paypal. We recommend looking at the daily deals section there for some ideas or we have a couple deals below worth checking out.

A prime example of how to use this coupon is the Western Digital 4TB My Book Desktop External Hard Drive from Newegg’s eBay store for $109.99, but when you use the code (above) the total drops to $89.99 shipped. That’s $70 off the original list price and $39 less than Amazon’s current listing. It features local and cloud backup and up to 5Gb/s data transfer speeds. Rated 4.3/5 stars by over 2,500 Amazon shoppers.

Another great deal is the Apple iPhone 5s Factory Unlocked 16GB for $169.99 shipped, but when you enter the code above the price drops to $149.99 shipped. That’s $20 off the regular sale price and the lowest we can find.

Note: We’re not sure how long the code(s) will work for or if there are any product exclusions, but they are currently working.

Complete backup for peace of mind

Help protect your precious memories and important files with automatic WD backup software. For complete system backup, use the included Acronis True Image WD Edition software.

Keep your private stuff private

Gain peace of mind knowing that your data is protected from unauthorized access with password protection and hardware encryption.

Fast setup and impressive performance

My Book is so easy to set up and use. Just plug in the high speed USB 3.0 cable, run the software and you’re ready to quickly transfer files or backup your computer.