A lot of things come with plastic cable ties on them. Cable ties are very durable and I can only take them off with scissors. Because they're so durable, I want to be able to use them for other things. **How can I undo a plastic cable tie so that it is still usable?**

In case you don't know what a cable tie is:

![cable/zip tie](https://i.stack.imgur.com/hUceJ.jpg)

*Note: Some people call them zip ties*