How often do I CD? ... well if you mean "CDing" as wearing clothes normally associated with the opposite gender, then 24/7.
I always underdress with bra and panties and my outer clothes are always women's ones ... BUT .... at work I wear girls clothes that are fairly gender neutral. I think some of my GG co-workers can tell that I wearing girls jeans and tops but no one ever says anything to me. Outside of work I push the envelope more and and have more of a "femmy boy" look.
Dressing fully en femme with wig, forms, makeup etc ... well, it varies, usually 1 or 2 times a week, occasionally 3 it depends on what I'm doing, where I'm going, and who I'm seeing. I have quite a few friends who only know me as Rachel so obviously if I'm meeting them then I dress fully.