You’re paying about $3.60 for a gallon of gasoline, a 21% jump since the start of the Iran war on Feb. 28. As the war continues, you’ll probably be paying more.

The nationwide U.S. average price for a gallon of regular unleaded gasoline was $2.98 on Feb. 27, the day before the United States and Israel attacked Iran. Now the price of oil has reached $100 a barrel and gas costs are rising.

Learn more: Gas apps and fuel rewards can help.

In the wake of the international conflict, there are some hands-on, common-sense things you can do to ease your financial pain at the gas pump.

In addition to using gasoline apps and paying cash, simply making sure your car is in good shape and driving sensibly can help you save money. Here are some recommendations.