Thank you - MacyBaby and Rodney for putting things in list form. I have frequently used the little brushes Cari mentioned.
I have also used oxi-clean, evaporust, & citric acid for cleaning attachments. I have started using Brasso per SteveH's recommendation. I used to use simichrome for metal but have found a new use for it. I use it on the Singer button foot controllers to clean/polish them up and also found that it really improved the appearance of the the T&S cases. For the hand crank pinker with the godzilla finish I used "Turtle Wax Color Back Finish Restorer." I used it after cleaning the pinker about 5 years ago and it still looks good.
Janey - Neat people never make the exciting discoveries I do.