C only starts when it feels like it??

[Erickramirez 0]

Ok heres the facts: if i let it sit overnight and start it in the morning it will usually start right up nice and strong no problems. but if i drive it around then let it sit for some hours and try starting it again i turn the key and NOTHING happens at all it wont even try to start, so i switch it to off and try again and usually it will start right up after 2nd try. there are some times where i have to try it up to 5 times to get it to start. my car never really struggles to start (rarely struggles) usually it either starts or it doesnt. i know my alternator and spark plugs are good (1 plug has oil around it) i believe my battery is good but it was a cheap ($60) interstate battery. my fan is wired to turn on while key is in on position and it runs strong as do my lights so no signs that my battery is low. not sure on my starter or ignition. so what is the deal???? help really appreciated..

[Critical_Mass 10]

Ignition switch, tried changing that? They are a common fault and are cheap so worth changing.