filling perscriptions state to state?? how??

Depends on your medication. Some medications such as pain medications stimulants, and many anti-anxiety medication either cannot be refilled (class 2) or can only be transferred one time (Class 3 &4) and the transfer of medications is governed by State law, so it does vary in States. If possible you should travel with a written prescription for your medications, again depending on the medication the written prescription is good for 6 to 12 months. When you need a refill, bring your prescription bottle to the pharmacy 2 to 3 days (weekdays) before it is needed. The pharmacist can then call the doctor if the State does not permit computer transfers. If you need a class 2, pain or stimulant medication all bets are off. Most pharmacist will not fill the RX if they do not have knowledge of the patient or the doctor...the federal penalties for making a mistake are just too extreme.
Most important is DON'T RUN OUT. Allow enough time for phone calls, faxes, and transfers, remembering there are different time zones, and you are not the only patient...in fact, you are possibly/probably only a one time patient. When all else fails, you are out of medication, and a transfer in not possible, you will then have to visit a local Urgent Care center and have a local doctor rewrite the prescription.
Best to you: Gary, retired pharmacist.