Amazon currently has several LEGO advent calendars on sale for 20% off. These prices can change at any time, so shop now and order an Advent calendar. These always sell out ahead of December and this price is the lowest we typically see. Being that mini figure packs are $5 for one, these are an extraordinary value.
My kids love these sets every year and I can't recommend them enough. They have become a Christmas tradition for my LEGO lovers! All links are affiliate links.