Nothing wrong with Palmolive, if you’re working over a sink. But a lot of folks (me included) end up working on cars where there isn’t a ready source of running water right there, so we tend to bring a bucket of water, some shop towels, and Go-Jo. The Go-Jo (or a similar cleaner) will get your hands clean, and you can dip them in the water just to rinse the contaminated cleaner off. A quick dry with the shop towels and you’re ready to go. Anything that makes suds won’t work as well under those circumstances.