A few things like cable elevators are some of the most insane ideas that I've ever heard. Insane and genius at the same time simply because at anywhere from $24-150 or more...PEOPLE BUY THEM!!!!!
Here's a couple more.http://www.audiotweaks.com/tweaks/tweak_12.htm
This one looked good until I saw that its uses include putting them under D/A converters and pre-amps. It's a good cheap way for smaller subwoofer isolation if you want that.http://www.audiotweaks.com/tweaks/tweak_16.htm
Another sand bag tweak. Place the sand bags on TOP of your cd player for...
"gives a "heavier, and more centered" sound, reduces sympathetic vibration of the machine, resulting in decreased percentage of music lost through electron transmission".
This one uses 35 mm film cans.
"Use the film cans at the ends of the cables. Experiment with some or many." "The application of the film cans lowers the noise floor of the system so there is more detail. They also smooth out the highs."
If anyone wants a good laugh I suggest heading over to that site and have a look at some of the tweaks that are submitted. Some are incredible. I had and idea long ago for audiophile grade stuffed animals to be placed around your room. Sad part about it is, as much of a joke as that is, it would do better than all the other tweaks I just listed because it would help with reflections in the room. Only on very very high frequencies but it would at least do something. I really don't believe that those people realize how fast electricity actually moves.