I have used Nature's Specialties Almond Crisp Shampoo for 26 yrs now. My groomer uses their line of products. I buy a 32 oz bottle on Amazon, no shipping chg on prime. Poppy is a very active, tomboy of a Standard and she gets bathed often.....very often. Our record is 4 baths in a week...sometimes I call her, affectionately, Miss Piggy. That 32 oz bottle, which is $28, has lasted me since June of last year. I just ordered a neww bottle yesterday. You use 1 oz shampoo to 32 oz of water. I mix it in an empty dish detergent bottle as I can just squirt it on her coat where I need it. Sometimes when Poppy has rolled and played in the mud she requires shampooing 3 times to get clean, just because of all the grit in her coat.Thanks Streetcar! I've had Nature's Specialties on my list of shampoos to try and will look into the others as well. The idea of a compact shampoo bar lasting 3 months seems nice, but definitely not at the expense of being too stripping or difficult to rinse out completely.