Ya know, I got one o' them there
Oreck XL vacuum cleaners a while back, and the order include a dry cleaning system. I finally got around to using the stuff when I recently changed apartments and had to clean someone else's leftover spots in the carpet.
I'm now a firm believer of whatever it is that the
Oreck people sent: ya just spray this liquid that's in the kit, brush it in with a supplied brush to loosen the dirt, and wait around fifteen minutes for it to clean and dry. Then ya vacuum as usual.
I used it on a couple of spots and lo and behold, the spots were gone - and stayed gone! That's a problem with most cleaners - the spots return if the carpet is soiled bad enough.
Oh, by the way, if the carpet is showing signs of
age in that it's not "fresh" enough, there's no cleaner that's going to help you there. If they're not too threadbare, you may be able to dye them to make them
fresh looking again.