Cheap tweaks...What would YOU reccomend?

So many great tips. Ebarker2 advice is next to nothing in cost but great advice. Dedicated lines are not practical for many but if possible one of the greatest tweaks. Good quality
Outlets, keeping all connections clean, keep PCs and wires off one another. Keep components a reasonable distants from one another. Clean all fuses. Not fooling, in some cases this really works. If you do not have dedicated lines, Subaruguru's idea of turning off the fridge will surprise you. You may try putting small pillows in the corners of your ceiling. Drapes look good and in some cases can be a very effective tweak. Not a cheap tweak, but good racks/isolation devices are IMO as important as your audio gear. And as many have said and can't be said enough is speaker placement.

Well, I see a lot of different tweaks here, and will try some new ones. I think my favorite substantial one was to add these lead-shot filled "pillows" to the top of my speakers and most components. My system is in the baement on a concrete floor, so I have had no noticeable change with spikes on speakers, or on anything for that matter. I also had no noticeable improvement with innertubes, and the bubble wrap underneath components. But adding this weight to most everything changed my resolution to much finer. It was like clamping the speakers in a vice. Even though the cabinets were very solid, you could feel the speaker cabinets resonate. Now there is no resonance to be felt. The pillows are quite heavy. I initially thought it would cost around $20-$30, but ended up at around $100, because I also had to pay a girl to sew these things up too. But, I feel without them now it would sound "tinny" in comparison.
As a side note I have never been able to discern any difference using the RF blockers.

Hi guys, I personally don't believe in tweaks. An audio system is inherently musical or it is not and there is no tweak on earth that can correct an flawed system. In my opinion it's better to invest more in higher grade source or amplification than in so called tweaks. Tweaks usually alter the character of but do not necessary improve the reproduced sound. Everytime there is a new tweak I get the urge to try it but mostly I get disappointed. There is only one tweak in which I do believe: powercords. PS I don't consider interconnect and loudspeaker cables as tweaks. They should be of the highest quality to prevent loss of information.

the above opinion isn't necessarily based upon facts & completely ignores the synergy issue. What works for you won't necessarily work for me & vice versa. It's basically misinformation from the uninformed. Not intended to be a put-down, but as encouragement to newbies that there really is hope, regardless of the above discouragement.

Infinity_audio were did you get the SOLID ROSEWOOD ISOLATION CONES??