I LOVE Bath & Body Works soap. Especially the foaming kind (kids seem to spread it better than the original gel variety!). Recently, my daughter has had a little too much fun with the soap and used about 1/3 of the bottle in one hand washing. So I decided to use a tip that my mom gave me one time: IF YOU ADD WATER TO A HALF EMPTY BOTTLE, IT WORKS THE SAME.
She was right! It works perfectly and you can't even tell. The colour of the soap is still vibrant, the smell is still powerful and I've extended my soaps life!!