Well, it does make things easier if you only have to go back every three months, because sometimes arranging for the meds can be a real pain and if you can get more of it done at once, that's good. The doctors I've had also tend to write prescriptions for a three-month supply.

Although my plan won't let me get more than one month's worth of anything at a time, the pharmacy will keep on record that I had a three month prescription, so I can pick up the other two months' worth, just not right then. And, of course, I have to pay the copay each month. :P