If you have health insurance, your company probably offers a deal where you get a 90 day by mail for a $20 co-pay. For expensive drugs, this service can save a ton of money.
Nevertheless, if your drugs are on the generic list at Walmart (and now Target), a 90 day supply could cost $12.
(Note – I first learned about this idea from another blog; however, I cannot find the original post. After reading about the concept, I did some research and verified the “theory” would work with my health plan. If anyone knows the original blog post, I would be happy to cite the source.