Well, there are good points on what the author says! But others... let's forget them
1- Reduce the amount of detergent you use in each load and save money.
(this couldn't be more true! And the clothes will be better rinsed! I do this all the time, I always use soft water doses even if I have hard water and my clothes are sparkling clean all the time, 280 ml of powder for 5 kg of laundry is just too much! But this is how P&G works!)
2- Reserve hot water for towels, washcloths, bed linens and clothing close to the body, such as undergarments.
(I can only partly agree to this, washing clothes in COLD water in the long run is going to make them smell, expecially if your cold water is under 15°C/59°F, so I wash everything that needs "cold" at 40°C and hot is 60°C or extended at 40°C if stuff is not too dirty.)
PS: the dial on the photo looks like a Candy!
3- "That's going to be your biggest money saver," she says. "Use the free sun and the free air to dry your clothes."
(Couldn't agree more! Clothes spun at just 800 rpm dry indoors overnight, even thick stuff like jeans, plus that adds valuable moisture to the underfloor heating that leaves the house very dry. In the summer I dry on the balcony.) That saves 1 euro per load!
4- Fabric softener isn't necessary to get clothing soft and wearable
(This is just my opinion but I always use the full dose of fabric softener, otherwise, clothes are stiff and not because they're not well rinsed in my case, adding half a cup of of baking soda to EACH rinse or a cup of vinegar to the final rinse?!?!? That is going to cost double than using fabric softener! )
5- Make your own laundry detergent
GROSS! No other words needed, at least over here you can find a perfectly working enzyme, oxi-bleach, optical brightening detergent at less than 10 cents per load, that is going to cost less than homemade detergent too and will work better even if it is a value brand.
6- Buy an Energy Star-certified washer
Well, if I were unemployed I'd rather use my current machine to death before buying a new one...
7- Buy easy-to-clean clothes
Again, if I were unemployed I don't think I'd go shopping everyday...
And easy to clean clothes? Just get 100% cotton stuff!