I travel for work that requires me to stay in a hotel for 3 weeks at a time. I'm not reimbursed for laundry expenses and some meals. Can I deduct both types of expenses?

I have receipts for all of my non-reimbursed laundry expenses (dry cleaning and laundromat costs) and meals.  Can I deduct the laundry expenses and meal expenses or is there a dollar amount cap?