When fluffing out the smaller branches of an [artificial Christmas tree](https://www.homebase.co.uk/christmas/christmas\\-trees/artificial\\-christmas\\-trees.list) use a 'two out, one up' rule to fill the space. You can even use two different sizes of [Christmas lights](https://www.homebase.co.uk/christmas/christmas\\-lights.list) and a variety of [Christmas decorations](https://www.homebase.co.uk/christmas/outdoor\\-christmas\\-decorations.list) to add dimensions to your tree.