we always took towels from the day and remove all the water at the ramp.
once home we used meguirs quick detail on the exterior and babes on the interior but we don't have chilltek.
once a year over the winter do a good wax on the exterior and a good clean on the interior using malco followed up with babes.

worked for 14 years for us. lots of other products will have similar results. what matters most is getting a routine and sticking to it.