My ten month old wants nothing to do with a sippy cup.  I had her drinking from it at 4 months and I didn't keep up with it; now she screams and throws it on the floor!  The funny thing is, she'll drink from a regular glass if I give her juice or water from that but I really want her to learn how to drink from a sippy cup on her own.  She's been eating solids for about 6 months now and does fine with that so I don't know what the problem is with her bottle!  Security blanket? I could sure use some advice, thanks!