Temporary Discounts/Surcharges (auto deletion)

Dear members of the best vacation rental software in the world.

#1
What are your opinions on adding a field in Surcharges/Discounts where the defined Surcharge or Discount would be deleted automatically after it expires (selected date). Dealing with temporary discounts happens often to us, this way the list does not get flooded and is tidy and reduces the checking of every custom discount/surcharge.

#2
Adding a "Booked between" criteria instead of selecting dates "On", or digging into the seasons and/or holidays.
the "is" could be two date selectors.

Isn't option 2 already possible with the Booked on and then set the date to on or after and then a second criteria on and on or before. That gets you a valid date range. You can add many criteria with similar options.