Whether you have one plant or many, going on holiday can spell disaster for your little green friends. Instead of relying on a friend or family member to take care of your plants for you while you're away, you can make your own watering globe! Grab a pop bottle (or wine bottle), fill it with water, and insert the open end deep into the soil. The water will slowly release as your plant's roots need it, so there's no need for a plant sitter.