The Tree has lights

I finally gave in and bought Christmas tree lights. I have done this each year for the past 5 years. You would think then that I would have 5 sets but no each year I have to begin again at zero! In July I have lights and even random decorations but despite good labeling, in Dec - nothing. OK I am over that but this am I woke up to find my sons wrapped up IN my new set of lights. My second mistake (after leaving the box in plain view) was to ask them to untangle them.
So now you fully understand the mammoth job it turned out to be to just get these lights on the tree.