> Smart plant waterers for when I'm out of town. A low tech way to do it is to use an upside down water bottle with a small hole in the cap. You can also buy s

> Smart plant waterers for when I'm out of town. A low tech way to do it is to use an upside down water bottle with a small hole in the cap. You can also buy spike shaped things that screw into the cap thread and are a little bit more stable.