I agree...know your car inside and out. When I first got my 65, (or any used car really) I tended to limit my drives to very local. After about 6 months, and knowing the car very well I eventually drove it 360 miles away from home without many worries.
BTW, always carry a 1/2", 9/16", and a flat head...with those 3 tools you can rebuilt 90% of the car on the side of the road.
Slade