Peterson's is a charming little pharmacy located on Lake Street in Oak Park. It is such a shock to be recognized and treated well, instead of herded like cattle. This is no big-chain, trust me. Privately owned and operated for many years, you can see some of the history of the location in the front windows of the shop. They even deliver...which is an amazing bonus for someone housebound or disabled. They of course don't have the selection of the hours of the big chains, but for your everyday prescriptions they are fabulous!