$20 billion in dividends will benefit rich The wealthy look set to enjoy a windfall as more than 150 companies, from Costco to Las Vegas Sands, have declared one-off payouts as companies push money out the door to beat the higher tax rates advocated by President Obama. The Square Wallet app enables retailers to accept payments with a device that plugs into a smartphone or tablet and lets users buy and redeem gift certificates in amounts from $10 to $1,000. Heads up SolarCity, the San Mateo developer of rooftop solar-power systems, is expected to price its initial public offering Tuesday, and the company, whose chairman is billionaire Elon Musk, is seeking as much as $151 million in the sale.