Introduction: Repairing a Zipper (cheap)

In this instructable I'll try to explain how I fix a zipper.
Take a look at the picture below what do you see, yes a broken zipper. The zipper isn't attached to the fabric anymore. This happens very often (at least to me). The thread from the zipper wheres off after a while, and the zipper detaches.
You might ask why I repair it myself? Well the answer is simple, it's cheap and fast.
It's cheap because you don't need someone else to fix it for you.
It's fast because you don't need to wait weeks before your zipper is repaired. 

Step 1: What You Will Need

You won't need much.
What you'll need:
- needle (it needs to be thin enough to fit through the zippers' teeth)
- thread (doesn't need to some sort of super strong thread)
- small scissor
- the blue thing in the picture (you don't really need it)

Step 2: Step 1: Cleaning Up

The first step will be removing the old worn-out thread.
If you don't remove the old thread, sewing the zipper back on will become more difficult.
Pull the thread away but make sure you don't go any further then needed. You don't want to detach more.
At the end remove the thread by cutting it off.

Step 3: Step 2: the Thread

For the length of the thread I multiplied the length of the detached zipper by five.
So:
My zipper was detached for about 2cm.
2X5=10
I needed 10cm of thread.
When you have your yarn measured, try to get it through the needle (this is probably the hardest step of all).

Step 4: Step 3: Sewing

This step is going to take most of your time.
Go to the second picture for the sewing instructions.
You have to start sewing about half a centimeter from where the zipper has come lose. Pull the thread almost all the way through and leave about 1cm sticking out.
- Start with A.
- When you're done with a go to B2.
- Done with B2, start repeating B.
- Keep repeating B until you are about half a centimeter from where the zipper has come lose.
- End with A.
When you are sewing make sure that the zipper is lined up correctly.
Another important thing is, stay in the middle of the zippers' teeth.

Step 5: Step 4: You're Done!

You're practically done now.
The only thing you have to do now is cut off the thread that's sticking out.

Thanks for reading my instructable. I hope it helped.