I recommend that customers leave lights and/or radios on timer-switches but as an added security measure I will open and close curtains to make it less obvious that you are away.
I will also pick up post or anything else left on the doorstep, and move any dustbins left on the pathway by refuse collection.
On a first booking, I will visit you and collect the keys and discuss any security measures you may have. All keys are locked away securely and will only ever be tagged with a reference number and never your address.