We had to throw most of the bottles away tbh as in the end we gave up with all the bottle warmers etc and used to put boiled water in the bottles then cool it in the fridge, then we knew exactly how much boiled water to add to make an instant ready to go bottle. This of course over time cracked the bottles!! The price to pay for not mucking around with bottle warmers.
Thanks Shiv, would have been great! TBH though you never know what your LO is going to take to! Maybe we'll try the old ones and if LO is happy then get some new ones.
Having said all that I'm planning to BF primarily, but by "accident" we ended up with H where he would switch literally feed to feed (or mid feed even) from BF to bottles, so hoping we might be lucky enough to have the same situation so I can get a break every now and again........