No tip for the ergo, but I have one for the backpack. Roll everything and put it on end, so when you look into the bag you can see what you need. I had a rolled cloth nappy for spills etc, rolled the spare change of clothes all together, bunny rug etc. Also put things into plastic ziplock bags, so group your nappy and wipes in one etc So you pull out in one motion what you need to change a nappy.