How to use gulp build system to automate your workflow

In any process of creating a website you usually have to create some set of files and folders to match the desired architecture that feats the most your project. In that case you have to take care of compressing and minifying your css and your javascript, optimizing your images and a whole lot of stuffs you must consider to make your site well optimized. Plus, while your are coding there are many repetitive actions you often do like refreshing your pages to see the effect of changes you\'ve made. All these is really tedious and a complete waste of time. Imagine you have a system that does all this for you. Image when you save any changes in you css file, it creates its minified version, and does the same with your javascript file.