If you are planning on taking three, five hundred count, bottles of vitamins you definitely need a new plan. <VBG>
Go with the seven day pill dispensers and you should be fine. If you are taking a large number of the vitamins per day, I would bring the vitamin label with you for identification and the prescriptions for the rest of the medications. What will flag anyone are things out of the ordinary and large numbers of pills are out of the ordinary.