When I used to go to gun shows, I'd take money in four or five different pockets, start at 1/2 or maybe 2/3 of the tag price and haggle. If I had to dip into another pocket I'd make a comment, there goes the Wife B-day present, there goes my lunch money, and so forth. Seemed to work pretty good.
"Always place your clothes and weapons where you can find them in the dark"
"Understand that the enemy is not the enemy in his own eyes ;this may offer you an opportunity to make him your friend. If not, you can kill him without hate, and quickly."