Are ferrites effective for cabling?

WHere is the ’Tadaaaaaa" and the drum roll tooblue?
For an actual answer to the question...
Ferrites can be helpful under certain conditions.
Clip on types can be good on interconnects from a digital device as a cheap alternative to spending way more money to combat digital glare.
Tube types or clip on ones are good for zip line powercords as a cheap power conditioner. I actually place two tube type on each end of lampcords, and air cleaners, and fans. I slide the looped cord into the hole and through, flip it over the outside and between the halves of the zipcord at the other end.. pull tight, and wrap with Teflon plumbers tape, I have a least a dozen used that way on lamps etc.Also on the zip line AC cords of cheaper CD players.
When I was a cheaper audiophile, back in the 90’s.. I used ferrittes on the interconnect from my CD player to the preamp. Now I own two power conditioners, PS Audio Noise Harvesters, and $$ power cords. So I no longer feel the need for those ferrittes.   
Naturally there will be folks who think this all is a terrible idea, and would you rather SPEND A LOT OF MONEY fixing the things with more elegant and pricey stuff.

Thanks for the more appropriate answer, but kudos to tooblue's sense of humor ;-)  I have a Tice Signature III(b) so I have the noise from the house eliminated, but I'm wondering about what may creep in through the unavoidable tangle of cords that I have unfortunately amassed behind the entertainment center.  I have a couple different sizes and have a couple on cables like the coax coming from the satellite and and an interconnect or two, but wonder if they help with or detract from from the signalling?

@elizabeth , if you fine tune your system a bit maybe with a ferrite or weasel, you would of heard them.

I use weasels and otters. I have tried Mollusks, Bats, Goats, Squid, Dung Beetles, and porcupines.. The best are the otters.If you have any sort of problem, you can always try some otter thing!

@elizabeth , thanks for the smile. @wisciman99, sorry for the intrusion.