I have a "day off" mum duties once a week when DP takes charge of the 6mo, but I don't see many places to pump in London (or other cities I visit), so feel a bit limited when it comes to going to the library to work for the day, or out to the cinema/shops. Anyone have any tips to avoid pumping in the loos? (My local library has a breastfeeding sign on the nappy change door but there's a window in the door, so no privacy, and it's the only baby change room, so I think people will be hammering on the door!)