Say you had $1,000 to invest in green home improvement — how would you spend it? 

Don't worry about where the money came from — if you must, say you earned it, or it came from the green home improvement leprechaun.

Would you buy new, energy-efficient windows? Or bamboo flooring for the living room? What about more insulation for the attic to help lower your heating and cooling bills? What about an on-demand water heater? Or perhaps an upgrade for the exterior of your house, such as a new paint job or fiber-cement siding? Speaking of paint, would you add new color to rooms with low- or no-VOC paint? Would you want new, energy-efficient appliances, such as a new refrigerator? In general, would you want to focus on energy-efficiency improvements to help you save money over time? Or aesthetic improvements you can feel good about?

Obviously $1,000 may not cover all expenses for some of these projects, especially at a large scale. But take a second to daydream: If you were handed a grand of green to make your home more green, what would you most want to do? Share your daydreams by posting a comment below.