Several times in recent months I haven't been able to provide a facility in collections that would be very handy:
Example 1 Events in collections should not be shown when the event date has passed. This would be brilliant for any collection that's date or time related.
Example 2 Show a collection item at a particular time of the day. "Store now shut", "Good morning", "Frank is your DJ between 10 and midday"
This would be a very useful feature to have.