You can use a cheap basket to store your sponges, clothes and dusters. This will make your cleaning supplies more organized. It is up to you if you need a small or big sized basket.
It is always smart to use the back of your cabinet doors. You will need to attach hooks on this so you can hang something. You can do it like this picture.
To put some style to your organizers, you can do this. Attach a nice printed wallpaper to your peg boards. This will make it look more stylish.