What can you save? Consumer Reports survey found furniture shoppers saved a lot , $300 on average.
Doctor and dentist bills also came down $300 when people negotiated, though fewer people tried.
And people who haggled for appliances saved an average of $200.
One secret to Kaitlyn's success - she's not afraid to speak up.
Kaitlyn explains, "Recently, on a shirt I just purchased there was a little stain on it, so I asked them for a percentage off, and they gave me 10 percent off."
Consumer Reports' shopping whiz Tod Marks has other winning strategies.
Tod says, "The most popular tactic consumers told us that they used to get a discount was to simply tell the salesperson that they're going to check a competitor's prices."
Marks says also effective: researching to find a competitive price before you negotiate.
Tod explains, "The only way you find out what a fair price is, is to check online forums, to check fliers, to check Web versus in-the-store prices."
And Consumer Reports says it pays to be polite.
Tod says, "Remember, you can catch more flies, and discounts, with honey than you can with vinegar!"
Another area where you should consider negotiating is over bank and credit-card fees. Consumer Reports says people who did saved an average of $100 dollars.
Interesting to note, people are less likely to negotiate than they were five years ago - that's the last time Consumer Reports checked.