Plan ahead and make sure your tree will fit!
First things first - decide where your tree will go.
The ideal spot is a corner away from direct heat and safe from excited toddlers, tail-wagging pets, and "merry" adults.
Consider if you will be using mains powered fairy lights and accessibility to a plug socket. Aim to pick a spot that everyone sees frequently, so you get the most out of your tree.
With this in mind, you will be able to tell what size tree you will need and the best species to choose from.