We just moved into a new house with and older washer dryer. I noticed that the dryer lint screen has some filmy build up in it covered with lint that I can't get off with just wiping away the lint. I'm about it go-to-town scrubbing it with a scrub brush and Dawn...any reason I'm not thinking of that this might not be a good idea. It looks the the previous users used too much fabric softeners and it built up in there...thoughts? also, while I'm in the mood, any tips on cleaning the inside of a washing machine?