Randomisie anything in your life. Limit predictability and made life more interesting. Also, this tool is useful in certain areas where variety is needed or could be beneficial, like workout, eating, social communication, learning, teaching, hobbies ...
Just:
1. Create your list of items.
2. Select how many of them you want to pick.
3. Select the item.
There is also an ability to give a weight to each item and itll appear more often.
Dont forget - force touch for Edit ;)