Hi ladies, my husband and I are going to be first time parents in February and we decided to try reusable nappies. We've already bought a few different types to see which ones suite us best when the baby is here and have bought nappy bins etc. Just when I thought we had everything organised I noticed these things called nappy liners?! Do we need to use them? Are they useful? Honestly all this information has got my head spinning, any advice would be greatly appreciated :)