In Philadelphia, seafood salesman Billy Fulginiti bought 50 Powerball tickets with co-workers and a few more with a small group. He said he only plays when the jackpot is especially large.
"You go to bed at night wishing you wake up a millionaire," Fulginiti said. He planned to take a long vacation and "help a lot of people, a lot of charities," if any of his tickets turn out to be winners.
Powerball purchases at the Canterbury Country Store in Canterbury, N.H., have been so steady that the manager has been working extra evening hours to keep up.
Horticulturist Kevin Brags buys tickets at the store two to three times a month. He says he usually picks numbers higher than 32 because so many people use numbers 31 and lower, largely because of birthdays.
The birthday theory didn't scare off Paul Kruzel, a retired doctor who chooses the days his children were born.
Both, however, have the same plans for winning: "make a lot of people happy."
John Olson has a more elaborate idea: He'd like to buy an island.
At a downtown Detroit convenience store, Ceejay Johnson purchased five Powerball tickets. If she strikes it rich, the analyst from Southfield, Mich., said she would buy a home for her sister in Florida. Then she would "go into hiding" and take care of her family.
"And the IRS," she added.
Associated Press photographer Jim Cole reported from Canterbury, N.H.
Associated Press photographers Paul Sancya in Detroit, David Goldman in Atlanta and Matt Rourke in Philadelphia, and AP writers David Pitt in Des Moines, Iowa, and Jeff McMurray in Chicago contributed to this report.
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