Store it in the room housing your betta so its temperature is the same as the bettas jar. It makes it safer when you change his water. If you only have one betta, bottled water might be a good way to go. For those of us who are way past 50 bettas, bottled water is not even an option.
The average person litters 4.4 pounds a day. 29 pounds a week. And 1,600 pounds a year! That is enough to cover Texas 2.5 times.
16,000 - 20,000 lbs usually for the front part (truck, tractor, cab). But the empty trailer adds several tons more. For example a 53 foot long simple box (van) trailer weighs 10,000-15,000 with nothing in it. So a whole 65 foot long empty system (truck and trailer) weighs over 30,000 lbs.