Well those two things usually don't go together.

Do you work any part time jobs? If so most taxis don't have to have all the money up front, and if they did I wouldn't use them. Part down turned in, then pay a little as they do it, 2/3 untill I pick it up then payment in full.
Be carful list of people work isn't all that!
Check out our taxi thread and read it for advice.
