I heard some years ago that it was a good thing to cycle off-on your circuit breakers in a residential lighting/appliance panelboard every six months or so to help minimize oxidation buildup, etc.- has anyone else heard of this? It makes sense to me but, as always, there are drawbacks too.
It does make it convenient to re-set your digital clocks at Daylight Savings/Standard Time changes [Linked Image]

I've been doing this for quite some time now, though I do try to ensure there is minimal loading on the entire panelboard when I do this (failures do happen). I'm always especially leery of that nice big breaker that says "MAIN"- if it failed creating a bolted-short condition it could say "MAIM" instead...! LOTSA arc current available!!!

Any advice yea or nay would be appreciated as I am quite curious all of a sudden. Thank you in advance.

No wire bias here- I'm standing on neutral ground.