(no subject)

If I just want to make a one-off T-shirt for myself and not sell more afterwards, what site or place of business would people recommend?

Related, is there anywhere I can get Helvetica font, or possibly some kind of lookalike, without having to pay an amount of license money that makes no sense for the project in mind? (I thought of trying to do the design on a Mac, which may be possible, but I'm not sure.)