BabySocks - if you are using terry flats (or flats!) what I do is I've nipped down to the local safeway/woolies, and in the 'car care" section there are packs of 3 microfibre cloths for $5 (approx). I fold one of those into 3 and pop that under a layer of the flat nappy - the microfibre absorbs HEAPS of liquid. So you extend the nappy on butt time out a bit