+1I travel 100 miles each day on the highway. To add insult to injury, I have a white one whose chips show up like a sore thumb. I found Dr. Color Chip to work best for me. They give you a "rubbing compound" to delete all excess paint so you're left with just filling the pot hole. The compound works via a chemical process, not an abrasive one, so it doesn't booger up the surrounding good paint. Unless it's just a scratch, I ignore their "smear" instructions and just work to best fill the chip with a good quality small brush. Much less wastefull of the paint and compound. It works and looks good once you get the hang of it, but of course it's not an invisible repair. My 2 cents.
IMO. We have people come every tuesday and thursday. They do all the touch up and panel work for our used cars or small lot damaged cars. They do good work. Id use them for small stuff but big stuff is kinda sketchy because ive seen them out back painting when the winds blowing hard and i know theres gotta be some debris in there.If you really want them to 'disappear,' the secret is finding out who repairs them at one of your local dealership's used car departments and then hire that person to fix yours - cause they usually work on the side too.
It will cost around $75 but once a year or so keeps the front end looking like new because usually these guys are very fast and very good - which is why the dealers hire them in the first place. Just ask who they use for their stone chip repairs. Sometimes they also do paintless dent removal as well. I've used a guy here in San Diego for years and he can fix just about everything.