I read on here that the best way to clean canvas bags is to use baby wipes. I bought a pack -- perfume-free, soap-free, etc. -- but when I clean the bag it leaves 'soap trails' anyway? Like you know, those white trails that you get from using soap as well. Are baby wipes supposed to work this way? Or did I get a wrong brand or something? I've never used baby wipes aside from this of course, so I have no idea... ^^;