I have a 2003 Chevy Malibu.I just recently made 2 copies of car keys.. I put the old key under the car.I would say I turned the new key in the ignition approx. 30 times .All of a sudden ,I get in ,put in key and it will not turn right a way,had to play with it,wiggle it to get it to turn.So about 1 hour later ,I am at the store and it happens again... I thought it was the new key so I retrieved the key under the car and it did the same thing.I was very worried I will get stuck somewhere.I have been leaving that spare key in the ignition so I won't get stuck... just for a few days... PLEASE HELP!

If your old key was too badly worn to use daily, chances are your ignition lock cylinder (where the key goes in to turn) has also gotten worn and it may need replacement as well.
Where did you get the keys from? Some aftermarket key, like many of those available in hardware stores and such, are made from softer metals and may be leaving scrapings inside your ignition lock cylinder and causing the problem. You will need to take a close look at the entire system to find out.
Try another source for your keys and see if the problem persists.