OK, this is an easy way to narrow down the problem. If the car doesnt start easily it could be the alternator. There is an easy to test it.
1. start the car.
2. remove the negative and positive wires off the battery. Yes, take both wires off the battery.
-if the car dies, than the alternator is not working and needs replacing.
If the car doesnt die then there is a problem with the battery. They don't last forever, and will have internal problems once and a while.
After that, double check the wires to the starter and make sure they are damaged or look dirty of what not. Some auto parts store can test starters and ever tell you what part is bad, or if its even the starter at all. Good luck.
Oh, check your plug, wires, and dist. cap too. Problems can start there too
