Thanks for your advice ladies!

I felt much more empowered to tell hubby that they're not worth keeping around and used your reasons to explain to him! I have salvaged more of the snap in inserts from the yuckiest ones, and had another play with the very few baby beehinds that are still holding together. The old BB's don't really have anything else worth salvaging from them, even the fabric is wearing thin. I can see what you mean, that they really are going to rip and fall apart soon anyway.

A positive is that I hadn't realised that the BB's are so adjustable for a smaller baby. I was also turned off them as I prefer to avoid bamboo because of the way it is chemically processed, but I didn't realise that some of the BB's I have are the hemp fitted and so are only hemp and cotton! So these may be a good option for me when I get a few new ones. I also like the Motherease organic cotton fitteds. Thanks for the suggestion!

It's good to know that snaps are a better choice than velcro. All I had to go on is these horrific old things that the snaps are tearing out of, but if you say velcro usually fares worse then I'll take your advice!

I'll try giving them all a gooooood soak too and chuck them out if they are still smelly and dirty!

I also sorted them all by type and showed hubby how much more fiddly the pockets are to use (sorry, I'm not a fan) over the pop-in boosters and that turned him off using them. Prior to that he'd said "well even if you get new ones, I'm using these" - not anymore! We agreed to keep them around as backups but that I can get some new ones! I'm so pleased! I'll look at selling them if we're not using them a few months in.

So now I have to decide between BB's hemp fitteds, or Motherease organic cotton fitteds. If you know of any other affordable options that are onesies in only hemp or cotton I'd love to hear what you think! I had looked at the Disana tie nappies but I think they must be a choking hazard.

Thanks so much again for your opinions.