1) Leave your equipment ON 24/7. At least try it! Cost me <$1/mo.
Do you really think that amp is going to “burn out” before you do?!!
2) Use fans or coolers ONLY if the piece is very hot to touch. (solid state NOT tubes.)
3) Aim any cooling airstream AWAY from the gear not AT it. Don’t blow the hot air back onto the tubes/circuits.
4) Use extra caution with cabinets/enclosures and component stacking.