Disclaimer: The company you see advertised in this post I am an affiliate for so any purchases made I will receive a small royalty for.
If you haven't yet bought your 2019 planner then why not check out Paperchase. They have loads of different planners available that you will be spoiled with choice.
They have plenty of journals to choose from too. There is nothing nicer than to receive a diary as a gift if you have begun your Christmas shopping already.
Why not check out their Mermaid Squad products, great for those children who love stationary.
Planning my weeks ahead, months and year, helps to maintain a good level of wellness, so I don't become overwhelmed and remember important dates.