My 1994 SL won't turn over

Hi. My '94 SL had been stalling occasionally over the last few weeks at lights, and starting to run rough. I had been planning to take it in, but I overall don't drive it much. But starting last night I couldn't get it to turn over. I even put in more gas just in case, but nothing. Any ideas?
Thanks

Mark

Do you mean you couldn't get it to start, or the starter wouldn't rotate the engine? When people say, "It won't turn over", that tells me the starter isn't working.