I can get as excited as the next person at cutting edge clean technologies. But I also love the simple solutions, the folk wisdom, the public domain knowledge that we can apply to live well and equitably within planetary limits. Here are a few of my favorites - what are yours?

- the bicycle
- the cover crop
- the compost pile
- the hand-me-down chain
- the mending circle
- the live music evening
- the repair cafe
- the library
- the shade tree
- the rain garden
- the sidewalk

@bethsawin I'm going to dodge the question and say: anything that is useful and lasts so that it can be passed from generation to generation.