Speaker Conditioning (prolonged life & appearance)

[kbethune]

I was just curious to know what users did to prolong the life of their stereo equipment?

For speakers, does anyone treat the rubber surrounds w/ any chemical to prolong their life. I've seen cracking on older speakers...and do not want that to happen to my Infinity components.

Also, I am contemplating a flat screen purchase later this year. Do they make protective covers when the HDTV is not in use (I will use it in my theatre room only for watching movies primarily)?

Thanks,

K