Your holiday home may be kitted out with all mod cons, but don't forget the basics.
Make sure your guests stay in the holiday spirit: they don't want to have to take time out from their stay to top up household supplies.
Regularly 'stock take' and replenish supplies as necessary. Try and gauge from your guests if there was anything they needed to buy during their holiday and remember it for next time.
You may find that your thoughtfulness could help you on your way to a repeat booking too.