Irene volunteered at a local art museum where she conducted art education seminars. She was required to wear a blazer that the museum provided, but she paid the dry-cleaning costs of $200 per year. The blazer was not suitable for everyday use. Her travel to and from the museum was 1,000 miles for the year. She estimates that the value of the time she contributed during the year at $2,000. ($20/hr x 100 hrs) How much may Irene deduct as a charitable contribution this year?