Originally Posted by ody12
how can i get cyanogenmod w/o losing any data?
can i dual boot cynaogenmod and stock rom?
also im on gs3 t999 rooted stock rom and i have clockworkmod installed
Simply back up your apps with Titanium Backup, and put your contacts on your SIM card if you haven't already. Everything on the internal SD card isn't erased after a factory reset (in TWRP anyway, not sure about CWM), so you don't have to worry about pictures or stuff.
EDIT: I guess dual booting IS possible. I stand corrected.