We already know Americans are struggling and pinching pennies wherever possible. But a new ABC News/Washington Post poll shows just how many people are being affected by the economic turmoil. The survey finds that 63 percent of Americans are cutting back on spending, with three in 10 saying they have drastically changed their habits. Across the country, parents are cutting back on extracurricular activities for their children, and adults are canceling or putting off checkups at the doctor, and going out to eat less—or even moving in with family. Sixty percent of people living in households with incomes of more than $50,000 are also cutting back on expenses. Scariest for restaurant workers: One person is quoted as saying he’s stopped tipping.