STOCKTON - Enjoy the sales this holiday season, because starting Jan. 1, California businesses that pay minimum wages or thereabouts say they have no choice but to raise prices on everything from pepperoni pizza to dry cleaning to a sack of potting soil. For the first time in five years, California's minimum hourly wage will increase. Since 2002, it's been $6.75, but starting Jan. 1 it will rise 75 cents an hour to $7.50, an 11.1 percent increase. "We have to raise prices," east Stockton dry cleaner Nubia Vargas said. "My customers, I don't think they will understand. They think...