I put a washer and dryer in my shop just for my shop towels, dog towels, and any other rags that we have around the house that we don't want in our clothes machines. I often wear coveralls in the shop that get pretty grungy as well. I just toss them in the machine at the end of the day and they are ready to go the next day. For the really greasy rags, I presoak in simple green, and also add some simple green to the cycle. I use my share of blue paper towels as well, but there are a lot of things that I really prefer a good rag or towel for.
A while back I added an outdoor shower attached to my shop so I can take a shower and put on some clean clothes when I am done for the night. Between the shower and the washer/dryer, I have completely eliminated tracking shop grease and dirt into the house. My wife appreciates that very much. I pipe all of my grey water from the shop into a dry well. I don’t think I’d try it if I were on city sewers.
