A bit harder - use of a telephone book would probably solve a fair portion of cases where they didn't just get straight in (assuming you paid with your own credit card and so they had your name).
> Yes, so all it takes is somebody to rob THEM, and get keys and addresses...
Which would legitimately take the heat off of them, so it would be in their interests to fake a robbery of themselves not long before their real robberies of others begin.
Ah, but I'm just getting started! If you wanted to rob houses and frame them, just rob them first. The police and everyone else will think your real robbery was faked by the company, as per my previous paragraph, so you get off scot free.