Trash is not something most of us want to spend too much time thinking about. We put it into the trash bin, we put it outside on the curb on trash pick-up day, or take it to the dump. And we go through the same routine the next week. But what we are throwing away is something town and city officials across the state are spending a lot of time thinking about. That’s mainly for one reason: getting rid of waste is expensive and that cost is only going up. More and more towns are considering the concept known as pay as you throw to help cut back on what the town sends to the dump. New Hampshire Public Radio’s Rebecca Kaufman reports that the idea does seem to save town’s money. The hardest part is convincing residents that they might too.