I'd imagine that you can get last-minute catering services if it is a small event, meeting, lunch break or tea. I know you can order Subway catering online with less than 24 hours notice, provided the Subway store is nearby your office. Some stores do delivery while some only offer pick up. They do sandwich and wrap platters, drinks, cookies, etc. It is a good option for when you need a light lunch or refreshment for your employees or visitors.