I carry to the range with me a plastic contaner with patches soaked with Knights solevent (don't know that it's any better than anyones else just what I started with) and before I leave the range I run a couple of spit patches and then a couple of the soaked patches, get home and use a 20 ga bush soapand HOT water, I've never had any problems with Plastic fouling but my loads are mild. Every now and then I'll throw in some 409 during the cleaning process.