Mary, I went to South Africa (from Australia) with my son, then aged 4-6 months. We spent a lot of time driving around, sometimes up to 8 hours a day. My son never slept longer than 1/2 hour, and had reflux, hence the continual demand for feeds, comfort, etc. I had never had any experience with cup feeding and neither had he, we rapidly learnt!! I would express while hubby drove and pass small amounts over to the baby seat. Luke would hold the cup and slug it down, never spilt a drop mind you. I am sure that he got great enjoyment out of the whole business just because it was something new and different. Due to unrest, we were unable to stop for proper breastfeeds, this was the substitute. Val in Busselton, Western Australia RN RM IBCLC