Don't take a year off. I have no pharmacy experience, but the pre-pharmacy advisor at my school of choice (Kentucky) made several helpful suggestions, which I have followed:
1. Read the Pfizer guide to pharmacy careers and find some areas you are interested in.
2. Call different pharmacy practitioners in your area and set up 1/2 to 1 hour informational interviews.
3. Develop a list of questions you have for the person. Do not just go sit in their office and expect them to lead the discussion, although if you are very lucky they may take the lead anyway.
4. After the interview/shadowing is over, go home and write at least one paragraph about your observations, what you learned, etc. These notes will help you when it's time to fill out the application and write your essay, etc.
Some places I have/will go:
Poison Control Center (they are open 24 hours - I was able to sit and observe a shift - very interesting)
Family Health Center - local low-income clinic
Long Term Care pharmacy - consultant services; I'm working with their recruiter, a contact which could come in handy someday.
Independently owned pharmacy - easier to get into than chain stores, IME
Local University pharm residency/clerkship program - another good contact for future; call the residency director
Home Infusion pharmacy - check with home health or visiting nurse service
Pharmacy Benefit Consultant - (licensed RPH) at my university - going to lunch with her next week.
Pharmacy school faculty - my uncle (an MD) knew one of the Kentucky faculty. So I emailed the professor and name dropped and got myself on his calendar. I visited with him in the morning (he's on the adcom!) and spent the whole day with his pediatric pharmacy students, seeing patients, going to case conferences, getting the "real story" first-hand from the students, and then went to his class in the afternoon. If you don't know someone - just pick a professor whose specialty interests you and email him/her. Just make sure you have a true interest and can ask intelligent questions. Otherwise it could turn out badly.
I'm sure other people have ideas as well!