Most laundromats have change machines that can exchange a $1, $5 or $10 bill for quarters. If your laundromat does not, go to a different laundromat. Arcades at the mall also have change machines. Any grocery store, pharmacy or gas station can exchange a bill for quarters. Ask at the customer service desk. read more
I’d walk in once a month with $20 and walk out with two rolls of quarters, and if you think that $20 sounds like a lot to spend on laundry in a month, remember that many coin-op machines in apartment basements are small—a set of sheets takes up most of a load—and I can easily spend $5 on laundry in a week. read more
I get mine from my bank. They will exchange a roll of quarters for the equal amount of paper money. read more