At times I wished we had extenders like those but in general I hated onsies and as soon as I could find t-shirts for DS that's what I preferred. But I do agree that you'd get a lot more use out of your onesies if you had those!
we have some that were handed down to us and i can't say that i've ever actually used them. i think they're great in theory though and maybe if i spent my own money on them, i would have actually used them :-)
Re: Anyone use these?
Posts on cloth trainers/PLing
Big E (6) & Little E (2.5)