This is NOT an affiliate post. Just my opinion. I’m not linking or getting compensated. 
Lately I have been giving Zane 2 or 3 bottles a day of breastmilk from my freezer stash or formula. I just don’t have a lot of milk right now and it fluctuates a lot with my cycles. It’s been so hot here lately that I discovered Zane was starting to be dehydrated. One day he had only 1 wet diaper! 😨 I felt horrible to know my baby had been thirsty all day. 😦 

Zane never loved bottles all that much when he was a little guy, so I stopped trying to fight him to take one every evening. He would do alright hit and miss but it was annoying to have to pump in place of nursing him anyway. So it had been a few months since he’d taken a bottle when I reintroduced it. At first I could only get him to take it in his sleep. He would drink it down really well as long as he was just dream-feeding. But pretty soon he got used to it (and the taste of formula, which he definitely didn’t love at first) and now he takes his bottles well usually. 
I decided to use drop-in liner bottles this time around (T and L both used regular bottles once we started them) and I like them SO MUCH BETTER! I don’t have to wash a bottle. No scrubbing with a bottle brush or hoping the dishwasher will get them clean. And no filmy bottles! Plus, we only have 1 bottle currently and it’s not a problem! With the other kids, I always had several bottles in different stages of washing, drying, feeding… But now all I do is wash the nipple and put in a new liner. We were on vacation last week and it made bottle making in the car a breeze! 

Anyway, you may be wondering why I’m bragging up these bottles when I’m not even getting paid… Well, the reason is because I’m frustrated that I can’t seem to find liners and replacement nipples (let alone another 4oz bottle) easily in most stores. So I’m stuck ordering the liners online. 

Which brings me to another point… I can get a 100 count box of liners online for under $6 with free shipping. So it’s not as if the liners are cost prohibitive. But it seems the bottles may be going out? Like they are on their way to extinction? And I just don’t get it! Something convenient, easy to use, air free, sterile…. Yeah… Let’s not make that too handy to pick up in stores. 🙄
And a word on the accuracy of the measurements, I get that it is a bit harder to judge. But I don’t find it to be an issue. If I was seriously concerned (like with a newborn) I would just measure the water in a regular bottle and pour it into the liner. Still wouldn’t be stuck washing a bottle. And Zane likes his milk warm so I use a bottle warmer at home. I put the milk in a cup in the warmer and then pour it in the bottle. It heats up faster than setting the bottle in hot water and I can put the cup in the dishwasher. Maximum laziness… I mean, time management… Achieved. 😉