Hydroponics for the home. The basics of how to build a DIY 70 plant hydroponics unit from scratch in one day. Total cost was under $300. Supplies food all year.
I have also made a bunch of self watering soil containers which are great for bigger plants. I was able to automate the watering of those...see that video here:
http://www.youtube.com/watch?v=22M9KvTiYjY
Get the hole saw to drill the holes here: http://amzn.to/12WujaG
