The idea is that the local services are given the information about the scheme, the client gets a sticker that's put in a visible location (front door or window). When the relevant people see the sticker they head towards the fridge, it's not so much the location that's important it's the consistency; it won't get dusted around, have something dumped on it, fall on the floor behind the table or suffer from not having a shelf by the front door. Also you have to consider that many people won't be happy displaying all their major conditions and tablets in an easy to read poster...