That's a great question! To make a live Christmas tree last longer, it's important to keep it well-watered and in a cool location. Make sure to keep the water level in the stand high enough to keep the tree's roots moist, but not so high that it causes root rot. Additionally, you should avoid placing the tree near sources of heat or direct sunlight, as this can cause it to dry out quickly. Finally, be sure to give the tree a fresh cut at the base of the trunk before placing it in the stand to ensure it can absorb water properly.