Even if you live in a small space without a yard to work with, there are ways that you can garden. The TED talk discusses an open source effort to develop indoor window gardens using hydroponic methods to grow herbs and vegetables.
Pest spray from natural ingredients. "I have been making this spray for more than 20 years--I don't remember where the idea came from--perhaps an old issue of Organic Gardening or Mother Earth News. I do know that the recipe works. "