Tie your plastic cap of the MagSafe adapter (Macbooks)

So, fear of losing that tiny plastic cap that "protects" your Mabooks MagSafe?  Here are simple steps.
You need:
1- thick needle or sharp point of any kind (use a needle like point, that is, not the same diameter but thin at the start and thicker at the base)
1- 5cm or longer nylon cord

Step 1 Punch the cap

Use the needle or sharp point to punch at the center of the cap.