cleaning the machine is a load of crap. wasting electricity, hot water, and time. and those stupid ass cleaning soap balls they want you to make a mortgage payment on!
it's steel and plastic. not like you slaughtered livestock in there ffs. Every time you use bleach, you sterilize it. slooshing and spinning around in an empty machine is rediculous imo. you want clean, throw a few white towels into a hot cycle with half a cup of bleach. there, some laundry done and machine cleaned, though it didn't need cleaning anyways. or do your bedding with hot water. your sheets will do MUCH better with hot water if you really want them clean. There's a LOT of stuff to make sheets dirty, without you having to do the dirty either, just the natural oils from your body / hair etc will do it.
seriously though if you are getting ANY kind of buildup in your machine of slime, grease, soap scum etc, something is going very wrong.
Aaron