I've been unknowingly using these tactics against salesmen for years.
Thanks for listing them so succintly!

My ruse when car shopping is as follows:

"Hello, I'm moving from town A to town B in 3 months time. I have absolutely no need for a car here in town A but I'll need one in town B so I thought I'd have a look and see what's out there."

I use it to feign indifference towards the salesman and pre-emptively bat off any suggestiong that there have been "three interested buyers already today". As far as I'm concerned, it's actually more practical to buy my new car when I arrive in town B so I couldn't care less that imaginary people are chewing your arm off to buy said vehicle. Of course, if I was to find a BARGAIN...

The other thing is to dress as though you are wealthy. In fact, buying new clothes to go *expensive thing* shopping can do a lot for your confidence when haggling. Alan Bennett used to harp on about the difference between "them" and "us" being confidence and a sense of entitlement.

It works well. Try it.
( blindmelon, Wed 20 Apr 2011, 15:46, Reply)