Got home last night ready to try all the good suggestions. I planned on starting with the easiest so I reassembled the trap then I poured water in to fill the sink so I could plunge it. It never backed up. The digging I did with the snake must have loosened it up? Works fine now. As far as cleaning / maintenance, I'm sure the pipes are layered with slimy crud. Would just very hot water down the drain be enough? Or best to leave well enough alone?
Thanks for the suggestions.
Steve