I'm a Best Press convert. I buy refill gallons when it's on sale for 50% off. Usually go in with a friend, buying 2 gallons we also get free shipping. A gallon lasts over a year. It depends on what I'm doing and what I'm using if or how much I use. Pieces 1-1/2" and under definitely benefit from a good spray! Pieces that are over 2" rarely need it.