Plans are wonderful, but they require watering and if a person has a lot of plants it can be time consuming. Additionally, going on a long vacation can be very dangerous for plans, as they need regular watering. Fortunately, there is a solution to this problem, namely self-watering pots which are being sold by a few companies. Basically they are sophisticated reservoirs which know when to water your plants. Of course, you will need to fill them up from time to time, but you can do it a lot more rarely, and you can go on a vacation owing that your plants will get watered. I think that those pots are a great innovation and they might become popular in the future.