My basic knowledge of jQuery comes from lectures by Brad Hussey. Ultimate Web Designer & Web Developer Course was one of the courses that I purchased at the beginning of my coding journey with the intent to do it at some point in the future.

Here is a cool project that was a part of that course. It incorporates draggable(), droppable() and sortable() methods of jQueryUI
It's a fun app that you can use to keep track of your to-do-list.

How does it work?

You can create new tasks, drag and move them across all days of the week.
You can also delete them by dragging and dropping them onto the rubbish bin icon.

Give it a go!