A light purple hard cover journal with floral decorations on the front and back with 120 lined pages to document anything you need or want. Grocery lists, to-do lists, things to remember for later, dreams, etc.
The biggest lie we tell ourselves is that we don't have to write something down. We'll simply remember it. Speaking from personal experience, I almost always forget what it was I needed or wanted to remember. Having a notebook on hand is always convenient in those moments.