javascript – Creating a “Save for Later” function for my website

I have created a website for a project and the next requirement I have in the process of improving the fucntionality is to create a Save for Later page. It is required to give items on the page such as images, articles etc to have an option to “Save for later” and allow users to earmark these in a personal folder and an alert to update the user on how many items are saved in this folder when a new item is added.

I’m not sure where to start so is there some sample code that can be provided to work from as a starting point? Working in HTML, CSS and JavaScript (jQuery). Thanks