The price of gasoline is currently outrageous in the Netherlands, about €1.60/liter (about $8.80 per U.S. gallon). What do residents do? They arbitrage, so that if they’re headed south they plan to drive through and fill up in Luxembourg, where the price is “only” about €1/liter. This is a bad idea, unless your trip would take you near there anyway. Also, because there are often long lines of liked-minded arbitrageurs waiting to fill up, this is a bad idea if your time is valuable.