I surely hope Tiger Woods is a glass-is-half-full kind of guy.

The golfing great’s earning power has dropped 30 percent in the past year. His endorsement income fell by that amount in the wake of the sex scandal that, since November, had been the talk of the planet — until Lindsey Lohan got into all that trouble.

But before you break out the crying towels for Woods, consider this: He earned $128 million in endorsements in 2008, according to Sports Illustrated; but his estimated endorsement income for 2010 weighs in at a “paltry” $90 million.

What’s more, his estimated endorsement income still is tops in the sports world.

Where I come from, 90 mil is still an obscene amount of money just for putting one’s name on a product.

By my calculation, Woods could walk away today and never play another competitive round of golf ever again and he’d still wouldn’t have to worry about where his next meal is coming from.

That assumes, of course, that he behaves himself.