For the first time I have an active bass - I keep leaving it plugged in and switched on all night and day! This is going to cost me a fortune in batteries.
Only way around this I can think of is to buy a child smuggled in from Asia or Africa and have them sit by my bass stand, ready to pull out the volume pot when I have finished practicing. But this could work out more expensive (would probably only be cost effective for 5 or more basses).
Any other ideas?
I hear you! I played nothing but passive basses, which I habitually left plugged-in, for more than 30 years; when I started playing active basses, I had to make a conscious effort to unplug when I was through playing.
Deliberately repeat a simple behavior long enough and it becomes a habit. Most people can learn a new habit after six weeks of repetition; you just have to force yourself to go through the motions for the first few weeks. Link an old behavior to a new behavior, and the new behavior is reinforced.
Learn to do something with the cable after you unplug your bass:
My iAmp800 has active and passive 1/4" input jacks. When I'm done playing, I unplug my bass and insert its plug into the empty input jack on my amp; when I walk past my amp, I check to assure both input jacks are "full" when I'm not playing.
My B1500 has only one input jack; when I'm done playing through it, I unplug my bass and loop the cable through a rack handle; when I see the end of the cable draped through the rack handle, I know my bass isn't plugged-in.
Mnemonic rituals can be very effective.