46. Does This Shirt Really Need a Wash?
Before piling everything you own into the washing machine on laundry day, do the sniff test and assess, whether or not a shirt, blouse, pair of jeans really needs washing that week.
Less laundry means not only less hot water used and therefore smaller energy bills, your clothes last longer, if washed less frequently or at least washed in cold water or water not heated above 40 degrees Celsius.
Using cooler water saves around 50 cents per load on heating bills, and if your clothes aren't soiled or stinky, why endure the expense of hot water?