What are the steps to create Magento 1.9 Custom Module?

What are the steps to create Magento 1.9 Custom Module?

Create a Magento 1.9 Custom Module
Disable Cache
Understand the Basic Directories Structure of Your Magento Store
Create Directories For Your Magento Custom Module
Configure Your Magento Custom Module
Activate Your Magento Custom Module
Use Event Observer
Model’s Directory
Magento Custom Module Created