My friend Lexi (who just had a baby...congrats!) told me about this baby bottle sling and it is amazing. You just strap it to your car seat and it holds the bottle in their mouth. It took her a couple of days to learn how to use it...but I love it.
I definitely wouldn't recommend it for your first baby since you have time to hold and love and snuggle your baby, but with number two when you need about five extra hands, this comes in very handy! I try to feed her myself as much as I can, but any mom of two + will know their are times when you just need to prop a bottle and this is an excellent alternative! The website is just bottlesling.com $20.00 for moments of sanity, well worth it.
Plus the awesome thing about it is that it stimulates early development in holding their own bottle. You can see her trying to in these pictures.
Thanks Lexi I owe you big! (Oh, for any pregnant or nursing moms I read about this really cool thing called a milkie and it collects your breast milk from the boob your not using while breast feeding...I didn't last long enough to try it but it looks cool. If you google milkie it will pop up.)