1. To hook the branches in the brackets provided for the purpose, which is cheaper but takes more time, and
2. The hinged branches tree that open up like an umbrella, which is more expensive but is much quicker and easy.
You may choose the construction you want depending on your budget. However, hinged trees can be stored as it is with lights and decorations to be used year after year, while the tree with hooked branches would have to be rearranged every year.
Metal
tree stands are safer and best to support your tree as they don't easily
tip over and can bear the weight of the heavy tree with all the lights
and ornaments. The length and softness of the tree needles differ, Cheap
Christmas trees have branches with square ends while rounded or
sculptured branch tip may cost a little more but look more natural and
nicer. Wire in the branches must be strong enough to hold the heavy
ornaments that you may use while decorating your tree. After the
holidays, store your tree in a dust and insect proof storage or
Christmas tree bag, so that the tree looks as good as new every year.
You may also save some money by buying a shorter Christmas tree and
adding to its height by putting it on a foot-high strong wood box that
can be hidden by the Christmas tree skirt. It will also increase the
stability of the Christmas tree.