We always leave the lights on...... they shut off by themselves after all, and it makes for great DRLs
This habit has only caused one problem, where my wife forgot to shut off the lights on my old Suburban(which has nothing "automatic" except the transmission
) .... and in so doing, ran the battery down
We don't leave the seat heaters on, or cruise control though, as they are used infrequently. But Heater/AC, Lights, Radio.... sure
al