I used to follow the advice to leave everything on all the time, particularly as a relative pioneer computer programmer (I wrote the first software that earned me money in 1970), computer hardware people were pretty fixed on the leaving it on thing, apparently early valve based computers with huge numbers of valves almost always had an inrush failure on one valve when switched on so once it actually was working it never got switched off.
35 years ago I started working away from home for weeks at a time and switched everything off before leaving, including switching off at the plug (I realise not all countries have switched plugs) and never had a failure of any item switching back on when I got home so continued even after I retired.
I even switch off items which have standby and a remote control at the plug when I go to bed.
Most of my kit is pretty old now and has only been switched on when being used, however complex or otherwise.
I do remember incandescent light bulbs and valves failing at switch on.
35 years ago I started working away from home for weeks at a time and switched everything off before leaving, including switching off at the plug (I realise not all countries have switched plugs) and never had a failure of any item switching back on when I got home so continued even after I retired.
I even switch off items which have standby and a remote control at the plug when I go to bed.
Most of my kit is pretty old now and has only been switched on when being used, however complex or otherwise.
I do remember incandescent light bulbs and valves failing at switch on.