If you are worried about the CD/DVD you’re already throw out, then you should deface or break it before throwing it out.
The Dirc Eraser provides easier way to do that. Just open the device, place the disc on a small ring and move a slider up and down then your disc will be unreadable. Will cost you for $15.99
Source: Disc Eraser
If you are too lazy to mow your lawn, this is your DIY solution.
With $480 (or lower, if you already own a lawn mower), you can start your weekend project by follow the instructions in the link, and see the video for how it operates.
Source: DIY RC Lawn Mower
This is not a new survival tool but we want to introduce it to someone who doesn’t know about it. Just slip it into your wallet.
Here’s the functions:
Just $4 each.
Source: Amazon