The general wisdom is that SS stays on all the time and tubes get turned off when you're finished listening. If you're going on vacation and not going to listen for an extended period of time, unplug everything from the wall. There are always exceptions.
power supply
How often do we have to turn off our equipment such as power amp , pre amp. cd player , power conditioner ......? Can we leave them on for days while listening on and off or do we have to turn them off after every session of listening? As a general rule the more the systems are left on the better the sound , so what is your idea on this issue ?