I have no dog, and my children are past the nappy stage. But not past the `Mummy please take this sticky chocolate wrapper/dirty wet wipe/fascinating collection of leaves and stones/dripping swimsuit/pair of accidentally wee'd-on pants/Lego structure that must not lose a single tiny brick in your handbag/banana peel' stage. And even when they're in school, just where am I supposed to put my own used tissue, wet umbrella, change of shoes, or apple core, seeing that public buses and the Tube never have a bin, I've never seen one built into a car, and you're hemmed into your seat on an airplane? This little box is as small as my keys. It loses one point because the case isn't a smooth cylinder as shown in the illustration but has pressed-together plastic edges that can be a little sharp, but I still count it a handbag standby, along with my mobile phone and pack of tissues. And oh, yeah, it would be essential if you had a baby or a dog.