Cheap tweaks...What would YOU reccomend?

For anyone using oriental screens:

I used an oriental screen at the back of my room to diffuse a nasty flutter echo. I eventually realized that it was resonating at a bunch of different frequencies and creating large peaks in the frequency response that I had previously attributed to poor room dimensions.

I found that filling each compartment in the screens with sand helped immensely. My screens had six panels and each panel had 7 compartments. I drilled into each compartment at the edge of the screen (and on the edge that faced away from the front) and used a funnel to get the sand in. It was hard to avoid clogging so this process took some time. However, it decreased the resonance and even seems to have prduced some bass trap effect. Smoothed the room response right out and made everything tighter in the process.

I recommend the iso blocks from meniscusaudio.com (amoung other sites). $2 each, 8 for $15. its about a 2 inch square piece of cork with a rubber laminate on each side. I placed four under each component, not on the feet, but between the chassis and the shelf. It smoothed out a huge amount of sibalance in vocals, mids, etc. I was shocked, really at the improvement.

Tweak for free and with great effect: turn off the power of all your equipment and unplug the interlinks and speakercable (not the power cords!). Wait a few hours and re-install the system. All static electricity will be gone and the system will sound clean, smooth and with open soundstage. I do this once a week. Just try it and let us know!

I had my ears professionally cleaned, and I was amazed at how the soundstage suddenly became wider and deeper.

What does this entail and what kind of Doctor (I presume a doctor did it) does this?