I believe that we can each do a little thing every day to (try to) save the planet... not really idealistic, more realistic actually.
Example: in many shops or supermarkets in Canada you have the option to buy "the green bag" for 99cents and re-use it as many times as you can instead of the horrible pollution of plastic bags. Personally i think it's quite good looking and I've been using it not only to the market but as a summer handbag too... A green fashion statement!