Watering your Christmas tree while you're away can be a challenge, but there are several things you can do to ensure that it stays hydrated and healthy. One of the easiest ways is to use a self-watering device. This device can be placed inside the tree stand and will slowly drip water into the soil, keeping the tree hydrated. You can also try using a drip hose. This hose can be attached to a water source and will slowly drip water into the tree stand. Additionally, you can try using a tree watering bag. This bag can be filled with water and hung from the tree, slowly releasing water into the soil.