For those of you who struggled with bottle refusal, how early could you get LO onto a sippy cup? I've tried (and others) all sorts of strategies and different nipples, but DD has her own ideas. The best (or least bad anyways) thing so far seems to be a sippy with the valve cut off that drips fairly slowly, but would come out pretty well if she'd suck on it (no luck so far). I'm planning to try every day gently to try to get her to catch on to how to use it. She's nearly 5 months - anyone have success fairly early? I go back to work in 2 months.