Air drying laundry
I admit that I am absolutely obsessed with air drying our laundry. I have been since I was a teenager and either my mom or I (it is still a point of discussion!) shrunk some very cool vintage clothes that I had worked hard to buy. Anyways... back to air drying laundry. Do it. It's simple, it is free and it saves your clothes from shrinking and wearing out.
Many people think laundry can only be hung out to dry in summer. Of course it is easiest in summer when it is hot and windy. But it is also possible to do it all year long. In the other seasons, but especially winter, the trick is getting the laundry up and outside as soon as possible as it will need longer to dry. Although it seems weird, it is also possible to hang up the laundry in below freezing temperatures. On those great sunny but cold days, when the laundry is hung up you can even see steam rising from your clothes as they freeze dry. That's the trick, although they do stiffen and freeze, they are drying. Gently place them in the basket and let them defrost for a bit (I usually leave them to the next morning) and they will be dry.
Another option is to dry the laundry indoors on a rack. I try to avoid doing this because of the condensation it can cause but needs must. There's a great post over at designsponge about drying your clothes indoors in winter.
Anyway, I figure winter takes a big enough bite out of our cash flow with extra heating costs so by air-drying our laundry I am saving money and the environment!