Best cheap tweak- the light switch! Just turn it off. The next best tweak-telling your kids, wife and neighbors to shut up and be quiet. 3rd best tweak-turn off the dryer, washing machine, vacuum, air conditioner and heater.
Whoops, in some cases turning on the air conditioner can have a positive effect.
Best tweak of all time: move your speakers or your listening position.
worst problem to overcome- static electricity due to dryness or too much humidity making the air lethargic and not move.
Best no brained tweak: clean out your ears or clear them like a scuba diver or yawn big.
Best time tweak-listen in the middle of the night.
Best tweak for life: change the source off of that rap or hip hop and put on some classic jazz.
Best no brainer tweak: clean your vinyl and your stylus.
Best duh tweak- listen to vinyl.
Best tweak when system totally blows for some reason: alcohol.
Best transformative tweak: getting a promotion at work or a big inheritance from the in-laws.
I got more but enough for now.
Tweak forever...