How often should i change spark plugs?

i have a '02 corolla -- should i change my spark plugs at the 60k mile checkup/maintanance? what else do i need to do at 60k miles?How often should i change spark plugs?
plugs for non platinum change then around 30k for platinum plugs anywhere from 60 to 100k, at the 60k service the trans, oil change every 3000 miles unless you use synthetic then around 5000 to 6000 miles. coolant service, injector cleaning, pcv every 15 to 30k, fuel filter every 15k.How often should i change spark plugs?
change spark plugs every year regardless of mileage, normal servicing annually although i would change oil %26amp; filter every six months
check your owners manual for maintenance schedules. It will tell you there what they recommend. I usually don't go over 60K however. The manual will tell what you should do or should have done. Make not of whether you are ';normal or severe'; service. Most people fall into the severe category.
your spark plugs should be changed every 45,000 miles...every 10,000 miles you filster need to be changed(fuel filters)....
Depends, are they platinum or standard resister plugs, platinum should last 75 - 100k miles with little or no wear, resisters should be replace every 35k. Also, use only import style plugs, i.e. denso, ngk, for your Camry. all others may give you grief later on.