If she shares your address (I'm guessing by "partner" that she doesn't share your name), you can add her as an authorized user (AU) on a couple of your cards. The older the better, plus clean history and low or no util.
Also, she should look into joining a credit union. She might be able to get a secured card or even a non-secured card in exchange for opening an account there. CU's are great for people in her situation.
* Credit is a wonderful servant, but a terrible master. * Who's the boss --you or your credit?
FICO's: EQ 781 - TU 793 - EX 779 (from PSECU) - Done credit hunting; having fun with credit gardening. - EQ 590 on 5/14/2007