@Robert Gentel,
I remembered EATON SHIRDLU as the pneumonic, but just googled the actual order, and am not sure of the source. It could very possibly be ETOA.
My most warn keys are: {}()<>?=
Ok, not really - but that would give me good street cred among programmers
(these keys are used alot when programming PHP). Actually, looking at my keyboard, I don't see a single key that looks warn. I guess I don't type much.