As one of its daily deals, That Daily Deal offers the iSafe Built-In Alarm Safety Laptop/Tech Backpack in Black for $19.98. Better yet, add two to your cart and the price drops to $36.96. With free shipping, that's $18.48 per pack and $4 per item below our January mention. (It's also the lowest total price we could find for the quantity now by $9.) It features a push-button 120-decibel alarm, high-intensity flashing strobe light, padded laptop sleeve that fits laptops up to 15.4", and audio device pouch with headphone port. Deal ends September 1.