I have a 9mo lg who has nice solid poos, and needs her nappy changing quite regularly because of a neat little poo often when the nappy is fairly new on & dry. I use biodegradable nappies so they're not the cheapest - about 15 pence per nappy I think - and keep thinking that if a flushable liner would sit neatly enough in one then I might only have to use 3 nappies a day as I could just flush the soiled liner & replace in between & only change the nappy around the middle of the day when quite wet. Does anybody do this?! Or am I bonkers for thinking of it?!