As part of your trick-treating you may want to check out Taco Bell. On October 31, 2009 Taco Bell restaurants will be giving away free Black Jack Tacos. It is one taco per customer. The promotion is from 6p.m. to midnight. The Black Jack Taco is valued at 89 cents and is a black crunchy taco with beef, lettuce, pepper jack sauce, cheddar cheese, pepper jack cheese, and mozzarella cheese.