He puts it on himself around his neck and as he is bending over trimming/shoeing the horses can smell it on him. I guess you could put it on the horse, too, but he likes them to associate him with the calming/relaxing smell.
On a side note, he DOES NOT smell like lavender when he comes home in the evenings! More like gross hoof smell! LOL! But he tells me, "that's the smell of money, honey"and I guess he is right.....
Hope it works for your laundry! I wish I was creative enough to make my own laundry soap.
Angela
I use lavender on my pillows - it helps with sleeping.