An optician was teching his son how to improve business through the use of the psychological approach. Son, after you fit the glasses, the customer asks, 'What's the charge'? You say, "The charge is $10" then pause and watch for the flinch. If the customer does not flinch, you add, "That's for the frames. The lenses will be another ten bucks." Then you pause again but this time just slightly and again study the reaction. If the customer still does not flinch, you say "Each!"
