As a child, Buffett displayed an interest in making and saving money. He sold chewing gum, Coca-Cola, or weekly magazines door to door. He worked in his grandfather's grocery store. While still in high school he made money delivering newspapers, selling golf balls and stamps and detailing cars, among other means. On his first income tax return in 1944, Buffett took a $35 deduction for the use of his bicycle and watch on his paper route.[17] In 1945, as a high school sophomore, Buffett and a friend spent $25 to purchase a used pinball machine, which they placed in the local barber shop. Within months, they owned several machines in different barber shops.