For a 6-5 people family who produces a lot of trash every single day and has overflowing containers, I would recommend getting an additional 96-gallon trash container. This would bring the total cost for trash to $40.76 for three months of service.
For an 8 people family who produces a lot of trash and recycling every single day and has overflowing containers, I would recommend getting an additional 96-gallon trash container and an additional 96-gallon recycling container. This would bring the total cost for trash to $61.14 and the total cost for recycling to $35.10 for three months of service.