Pay cash
This one’s always a crapshoot, but if you’re buying a big-ticket item, offer to pay cash. Since retailers have to pay fees on credit transactions—which tend to be sizable for higher-priced items, like designer clothing, for instance—you can score discounts by paying outright in cash.
Book your flights at the right time
There’s a sweet spot for booking flights, and it’s not “Tuesday,” as widely reported. By booking your flight at exactly 54 days out, you can save up to 50 percent on airfare—and by not doing so, you’re leaving money on the table.