Or you could always do what it seems half the population of Philadelphia does-
Hop the bridge to NJ. It's funny, There is a store called Roger Wilco on both sides of RT 73, which connects to one of the bridges. All pennsy plates all the time. On the pennsy side of the bridge, its all lottery/tobacco stores, because in pa tobacco is not as highly taxed as in NJ. I hop the bridge to pennsy and save a ton. Yes, it's Illegal. I was at a one stop in morrisville pa, and in the lot was 1 pa car-probably the guy that worked there, and 6 NJ cars.