I just got google maps and I'm planning a trip and trying to avoid major highways but I don't know how to turn that on
Good question. As far as I know, that's the one thing Google Maps is lacking...ability to edit route. It can find alternate routs if you enter the navigation, but I haven't played with that much. Might not hurt to start it up and see.
I have not seen that option either.
A gun in the hand is better than a cop on the phone.
Only the Skilled Survive
A computer lets you make more mistakes faster than any invention in human history - with the possible exceptions of handguns and tequila.
Drill Sergeant Frick's Rules For Un-armed Combat.
1. Never be unarmed.
2. See Rule #1
USMC rule # 23 of gunfighting: Be polite, be professional, but have a plan to kill everyone you meet.
Avoid toll roads
Route editing and better integration of routes created via My Maps in Google Maps (i.e. actually navigating such routes) would definitely be nice to have though.