I've been playing around some with home brew recipes from simple Dawn dishwashing liquid and isopropyl, to stuff I've bought specifically for record cleaning. I found this elaborate recipe on the web while searching, but haven't tried it. The ingredients are probably simple enough to get, but for me just looks to much to be a pita.
I was reading on the Steve Hoffman forum where some vinyl addicts are using and swear by Glass Plus as a record cleaner. It doesn't contain ammonia like Windex and I'd never use anything with ammonia on my vinyl. Although I've heard some people do. Just the thought of putting Windex on a record makes me cringe because I'm assuming it would be corrosive. Regardless, I'd never try it.
So anyway, I was bold enough to try the ammonia free Glass Plus method on a few meager LPs I have. I didn't use it full strength however. I mixed it in a half/half solution of purified water and a couple drops of Dawn in a spray bottle, then cleaned the records as usual with a soft, fine bristle paint brush. I rinse the vinyl first, followed by my Shark Steamer, clean with the solution and paint brush, rinse, steam and rinse again. I follow this with a thorough wipe with a carbon fiber cloth to remove any excess liquid, then air dry for about half an hour before spinning. I've only used the GP solution on really grungey records, but the results have been quite successful so far. Shiney, quiet LPs with little to no clicks or surface noise. Just passing this info along and you can try it at your own risk.