Best Press at local stores is expensive, look at the price per ounce. I buy the clear, unscented Best Press at Amazon (free shipping) for $41 a gallon. I then put it in the little spray bottle, filling it halfway, then water to fill the bottle.
Little bottle $10.07 for 16 ounces = 62 cents an ounce
Med bottle $17.99 for 33.8 ounces 53 cents an ounce
Gallon - it is even cheaper now - $37.45 for 128 ounces = 29 cents per ounce
Dilute by half and cut this price in half.