Step 3: Cutting the Bottle (part 2)
The first time I did it I was very tentative but now it usually takes me only about 5 mins to cut a bottle.
Be carefull, the cut edges are EXTREMELY SHARP!
*Note: I've also had success by heating the bottle in the oven for about 5 minutes at 225 F and pouring water over the score line. You'll need to ruin a few bottles to perfect your method.