Weed killer: 1 gallon vinegar, 2 cups epsom salt, cup dish soap not sure how this is organic unless she uses organic vinegar, organic Epsom salt & organic dishsoap- which I don't think is possible but more or less chemical free.
Natural Looking Winding Stone Stair - there are a lot of DIY projects a handy homeowner can do on his own, but this is one Id leave to the pros! This is so well done! Robinsons Landscaping and Nursery - Gardening For You
Turn old newspaper into seedling pots. They can be planted directly into the ground as the paper will eventually biodegrade. You can form them by wrapping the paper around a jam jar or similar, or there are 'devices' that can be bought to make the pots.