To make your Christmas tree last longer, there are a few things you can do. First, choose a tree that has been freshly cut and is still green, with no brown needles. Make sure to cut off about an inch from the bottom of the trunk so that it can absorb water better. When you bring the tree home, place it in a stand with enough water to cover the bottom of the trunk. Make sure to keep the water level up throughout the season, as the tree will absorb a lot of water. Finally, keep the tree away from heat sources and direct sunlight to prevent it from drying out.