<human>: Which of the following solutions is better for the following goal:
How can you double your zip loc bags?

OPTIONS:
- Heat up an old butter knife with a lighter and slice the bag in half (so that only one side has a zipper part) the hot knife cauterizes the edges of the two new bags. The cauterized edges are as strong as the factory sealed edges!
- Heat up an old butter knife with a lighter and slice the bag in half, (so each side has a zipper part) the hot knife cauterizes the edges of the two new bags and the cauterized edges are as strong as the factory sealed edges!
<bot>: Heat up an old butter knife with a lighter and slice the bag in half, (so each side has a zipper part) the hot knife cauterizes the edges of the two new bags and the cauterized edges are as strong as the factory sealed edges!