I came from a poor family so working and going to school at the same time was natural. It taught me multi-tasking although we didn't call it that back then. I learned I could never be idle I need to be doing many things at once.
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The greenest home is the one you don't build. If you really want to save the Earth move in with another family and share a house that's already built. Better yet live in the forest and eat whatever the squirrels don't want.