I was in the same predicament when I had my DD2, as it has been 15 yrs since I had anything to do with bottles. We have the avent bottles & have found having them prepared with the teat in as normal, with the cap on- the end of the teat is pushed against the cap- effectively sealing it. That's how I transport mine. I don't need to use the sealing discs at all, & have never had one leak. HTH
Sent from my iPhone using Tapatalk
Thanks for posting this! - Gemini_girl and I have been chatting about this and I actually thought that when I bought the bottles... Should have tested it to see if I was right! Thanks again!