I'll be wearing maternity pads when I go out closer to my due date when we have a third. My waters have broken at home with both my girls - while I was dozing early morning in bed with DD1 and while I was vacuuming with DD2 Both times I made it to our ensuite for the majority of it so it landed on tiles. I soaked through a maternity pad on the way to the hospital both times which was about a 20 minute drive. Given that though, it would contain a lot of the mess if I was at the shops I reckon. I will probably take a cloth nappy for mopping up any mess if need be as well.