One thing to consider that we used to tell our customers when I worked for a locksmith. Check what you have hanging from your keyring. The heavier it is the more stress you're putting on your lock cylinder. Every bump you go over causes the weight to act like a slide hammer.
Solution: put a quick release on the key fob and ignition key so that that is all that's hanging when driving, then snap it back together, or remove them permanently.
Benefit: longer lasting ignition.