There are really a lot of possible solutions.
1 If your battery is strong (engine turns over vigorously but fails to start) then you may need some feul injector cleaner when you add gas.
2 Your battery could be weak.
3 Your distributor wires could be cracked and arcing
4 Maybe you just wanted somebody to chat with?
The best car insurance is a caring mechanic who inspects the car regularily. It is cheaper by far than waiting for a big problem.