If you are on a budget but want to try tooth bleaching, you can try doing it at home. Treatments sold over the counter alone have different kinds of trays, strips, gels and pens that you can try. Each will have their own pros and cons, but reviews from most of the products have been positive. All results will vary as each person will have different causes and intensity of discoloration. If you want to make an informed choice, you can consult with your dentist and ask for recommendations on which home treatment they think is best for you and your type of teeth stains.