We have started leaving a reasonably clean and tidy house (always baffled me when parents did it) because someone comes in to bring in the post etc.
Re: leaving clean for burglars...
Unfortunately the time we were burgled we had only gone out to work for the day and the house was a tip already.
It took me about 15 mins to realise that it was a bit wierd that the window was broken and the video half out of the cupboard.
Thought DH was doing a repair job .