What Circuits For Relay?

For those who have rewired their cars, what all do you recommend running off relays? I realize that generally, they're meant for "high draw" circuits, but what constitutes "high draw?"

I'm doing some research before I tackle rewiring a car of mine and am trying to determine what to run off relays. So far, I'm thinking: headlights (high, low beam), fuel pump, fan (high, low speed), ignition box. For the starting circuit, I'll be using a Ford relay for the trunk-mounted battery and a CD relay for the charging circuit.

How about tail lights, brake lights, reverse lights, parking lamps, line lock, interior lights, alternator 12v reference/trigger, coil 12v, etc.?