This is important; breaking in to the house for the keys was usually about expensive, well-immobilised vehicles. If, as we use more security devices, scallys start to realise that it's easier to burgle the house to get the LR, then we should be much more careful about where we put the keys - not on the hall table, or in a kitchen drawer, or in a bowl near the door. Bear in mind, we all have two sets of keys for the vehicle - and the spares are probably all in one place, for all the vehicles in the house. (I haven't got a warehouse full of exotic cars, but you know what I mean). So, even if you block one car in with another - it's easy-peasey
So, even if you've put the Disklok, Pedal lock, wheel clamp on, as well as the immobiliser and extra alarm - they can all be dealt with by simply nicking the keys!
So, even in the house, you have to either hide them well (what a pain to go and get them every time you go out), store them in a safe (ditto), have dummies in the obvious place (that will slow them down a bit) or some other strategy.
... answers on a postcard, please