Hmm Dr Robert recommends Sparkle, a supposedly easily available non wax polish...I've never found it though

I've also heard Naptha is a good cleaner for removing cr@p without damaging a finish, even on cellulose laquers. I saw a video reccomending it once and Meguiars car polish to buff it to a shine.
Personally I use a gibson polish as I got some free once but generally just use a dry cloth