Let's be honest...going green is not always more frugal in the beginning. Often things like my biowash balls are much more on the initial layout than what is possible in one month.
About a year ago I started setting aside a monthly amount which I use towards a greener lifestyle...This month I bought a doggie toilet (see http://www.apetslife.co.za and look for Good Boy!) and with my left over funds I bought 20 bags of horse manure!
They come from my daughters riding venue...and are nice and mature - no smell and light to work with!